Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
gnome-packagekit-extra
gnome-packagekit-extra(x86-64)

Requires :

libc.so.6()(64bit)
libgconf-2.so.4()(64bit)
rtld(GNU_HASH)
librt.so.1()(64bit)
libpangoft2-1.0.so.0()(64bit)
libgudev-1.0.so.0()(64bit)
libgio-2.0.so.0()(64bit)
libgnome-menu.so.2()(64bit)
libpangocairo-1.0.so.0()(64bit)
libunique-1.0.so.0()(64bit)
libsqlite3.so.0()(64bit)
rpmlib(PayloadIsXz) <= 5.2-1
libgtk-x11-2.0.so.0()(64bit)
libatk-1.0.so.0()(64bit)
libcanberra.so.0()(64bit)
libfontconfig.so.1()(64bit)
libgthread-2.0.so.0()(64bit)
libgobject-2.0.so.0()(64bit)
libgmodule-2.0.so.0()(64bit)
gnome-packagekit = 2.28.3-3.el6
libc.so.6(GLIBC_2.2.5)(64bit)
libc.so.6(GLIBC_2.3.4)(64bit)
libcanberra-gtk.so.0()(64bit)
libX11.so.6()(64bit)
libdevkit-power-gobject.so.1()(64bit)
libnotify.so.1()(64bit)
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
libpthread.so.0(GLIBC_2.2.5)(64bit)
libgdk-x11-2.0.so.0()(64bit)
libpthread.so.0()(64bit)
libpackagekit-glib.so.12()(64bit)
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(CompressedFileNames) <= 3.0.4-1
libcairo.so.2()(64bit)
libc.so.6(GLIBC_2.4)(64bit)
libdbus-1.so.3()(64bit)
libgdk_pixbuf-2.0.so.0()(64bit)
libglib-2.0.so.0()(64bit)
libdbus-glib-1.so.2()(64bit)
libfreetype.so.6()(64bit)
libpango-1.0.so.0()(64bit)

Content of RPM :
/usr/bin/gpk-backend-status
/usr/bin/gpk-service-pack
/usr/share/applications/gpk-log.desktop
/usr/share/applications/gpk-repo.desktop
/usr/share/applications/gpk-service-pack.desktop
/usr/share/doc/gnome-packagekit-extra-2.28.3
/usr/share/doc/gnome-packagekit-extra-2.28.3/AUTHORS
/usr/share/doc/gnome-packagekit-extra-2.28.3/COPYING
/usr/share/doc/gnome-packagekit-extra-2.28.3/NEWS
/usr/share/doc/gnome-packagekit-extra-2.28.3/README
/usr/share/gnome-packagekit/gpk-backend-status.ui
/usr/share/gnome-packagekit/gpk-service-pack.ui