Table:
rank
province
2011 census
2015 mid-year estimate
2018 mid-year estimate

population
percentage
population
percentage
population
percentage

1
gauteng
12,272,263
23.7
13,200,300
24.0
14,717,000
25.5

2
kwazulu-natal
10,267,300
19.8
10,919,100
19.9
11,384,700
19.7

3
western cape
5,822,734
11.2
6,200,100
11.3
6,621,100
11.5

4
eastern cape
6,562,053
12.7
6,916,200
12.6
6,522,700
11.3

5
limpopo
5,404,868
10.4
5,726,800
10.4
5,797,300
10.0

6
mpumalanga
4,039,939
7.8
4,283,900
7.8
4,523,900
7.8

7
north west
3,509,953
6.8
3,707,100
6.7
3,979,000
6.9

8
free state
2,745,590
5.3
2,817,900
5.1
2,954,300
5.1

9
northern cape
1,145,861
2.2
1,185,600
2.2
1,225,600
2.1

south africa
51,770,561
100.0
54,956,900
100.0
57,725,600
100.0

Statement: western cape is the third most populous province, with an estimated 6.6 million inhabitants in 2018.
Question: which province is the third most populous province, with an estimated 6.6 million inhabitants in 2018?
Answer: western cape