I think grep makes more sense in this case. Assuming you know there is only one result per $id, and don't mind checking the entire datastructure, this should work:
my $domain_ip = (grep {$_->[0] == $domainid} @$table)[0]->[2];
As in the folloing example:
#!/usr/bin/perl -wT
use strict;
my $table = [ [7, 'tigers', 600],
[8, 'elephants', 250],
[9, 'lions', 500], ];
my $id = 8;
my $fieldindex = 1;
my $animal = (grep {$_->[0] == $id} @$table)[0]->[$fieldindex];
print "id=$id fieldindex=$fieldindex => animal=$animal\n";
=OUTPUT
id=8 fieldindex=1 => animal=elephants
-Blake
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