The points total for the teams that finished 3rd by year.
https://fbref.com/en/comps/10/history/Championship-Seasons
22/23 - Luton 80
21/22 - Huddlesfield 82
20/21 - Brentford 87
19/20 - Brentford 81
18/19 - Leeds 83
17/18 - Fulham 88
16/17 - Reading 85
15/16 - Brighton 89
14/15 - Norwich 86
13/14 - Derby 85
12/13 - Watford 77
11/12 - West Ham 86
10/11 - Swansea 80
09/10 - Forest 79
08/09 - Shef U 80
07/08 - Hull 75
06/07 - Derby 84
05/06 - Watford 81
04/05 - Ipswich 85
03/04 - Sunderland 79
02/03 - Shef U 80
01/02 - Wolves 86
Worst case looking at that we need 90 points.
We’re on 55, so another 35 points needed from 24 games. An average of 1.45 points per game.
We are averaging 2.5 points per game at the moment, so in theory we could be unofficially promoted in 14 games time should we maintain that average. So the 5th March Vs Sunderland.