powershell - select second or third object / element -

i want select second/third/forth object of get-childitem statement in powershell script. gives me first:

$first = get-childitem -path $dir |          sort-object creationtime -descending |          select-object -first 1 

this gives me first three:

$latest = get-childitem -path $dir |           sort-object creationtime -descending |           select-object -first 3 

i second, or third, or fourth. (not first 2 , on).

is there way?

for selecting n-th element skip on first n-1 elements:

$third = get-childitem -path $dir |          sort-object creationtime -descending |          select-object -skip 2 |          select-object -first 1

or select first n , of last element:

$third = get-childitem -path $dir |          sort-object creationtime -descending |          select-object -first 3 |          select-object -last 1

beware, though, 2 approaches yield different results if input has less n elements. first approach return $null in scenario, whereas second approach return last available element. depending on requirements may need choose 1 or other.