On my RedHat 8 system I have a libproc.so.2.0.7. That library is located in /lib. Try looking for it there. If you have a second system, or if a friend has one, try copying the file from it. I don't think I can give you the file since my system has a different version of it. It's not that big (~50kB) so it will fit on a floppy.
Fun fact: you can see what dynamic libraries your executables link against with the command ldd.
~> ldd /bin/ls
libtermcap.so.2 => /lib/libtermcap.so.2 (0x4002c000)
libacl.so.1 => /lib/libacl.so.1 (0x40031000)
libc.so.6 => /lib/i686/libc.so.6 (0x42000000)
libattr.so.1 => /lib/libattr.so.1 (0x40037000)
/lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)