Ok. You can get the row from a ListBox/ComboBox by using the ListIndex property. The ListIndex property starts at 0, so 0 is the first entry, 1 is the second etc.
Dim Row As Long
Row = UserForm1.ComboBox1.ListIndex
Then just add the appropriate number to the variable Row to make it line up with the correct row. So if the first row you want is 59 you need to add 59 to the variable Row to get it to line up.
Dim Row As Long
Row = UserForm1.ComboBox1.ListIndex + 59
Then you can use the variable Row to make your range. Let's say we want Col A then:
Dim Row As Long
Row = UserForm1.ComboBox1.ListIndex
Range("A" & Row).Value = UserForm1.ComboBox1.Text