How to print 3rd to last line of file?

Hi,

I have a ksh script I would like to modify.

What I need it to do is look at an ever changing log file and print the 3rd to last line. Is there a command that will display this? I can not use line numbers because the file is always growing.

Thanks for any help

tail -n 3 logfile | head -n 1

awk 'NR>2' "file"