Indonesia is 57% larger than South Africa.
Area: 1,904,569 km2 World Factbook
Population: 253,609,643 (July 2014) World Factbook
Indonesia, officially the Republic of Indonesia, is a sovereign state in Southeast Asia and Oceania. Indonesia is an archipelago comprising 13,466 islands. Wikipedia
Area: 1,214,470 km2 World Factbook
Population: 48,375,645 (July 2014) World Factbook
South Africa, officially the Republic of South Africa, is a country located at the southern tip of Africa. It has 2,798 kilometres of coastline that stretches along the South Atlantic and Indian oceans. Wikipedia