If you build a .deb package of googleearth, and installed it with the dpkg -i
<googleearth-package.deb> command, then you should be able to find evidence of
its installation in two places:
1) /var/lib/dpkg/info
Issue the command: ls -1t *.list > ~ubuntu/Desktop/pkgs-installed.list
2) In /var/cache/apt/archives, you should be able to find a copy of the
<googleearth-package.deb> file