Table:
text: List of South African provinces by population
List
List
Rank_ Province Population_2011 Percentage Population_Estimate_2013
1 Gauteng 12272263 23.7 12728400
2 KwaZulu-Natal 10267300 19.8 10456900
3 Eastern Cape 6562053 12.7 6620100
4 Western Cape 5822734 11.2 6016900
5 Limpopo 5404868 10.4 5518000
6 Mpumalanga 4039939 7.8 4128000
7 North West 3509953 6.8 3597600
8 Free State 2745590 5.3 2753200
9 Northern Cape 1145861 2.2 1162900
South Africa South Africa 51770561 100.0 52982000

Question: List of South African provinces by population, what is the lowest 2013 population estimate of South Africa having a percentage greater than 19.8 and a 2011 population greater than 51,770,561?

Question: What is the rank of Gauteng province in the list of South African provinces by population?