Mongolia is 43 times larger than Taiwan.
Area: 1,564,116 km2 World Factbook
Population: 2,953,190 (July 2014) World Factbook
Mongolia is a landlocked country in east-central Asia. It is bordered by Russia to the north and China to the south, east and west. Ulaanbaatar, the capital and also the largest city, is home to about 45% of the population. Mongolia's political system is a parliamentary republic. Wikipedia
Area: 35,980 km2 World Factbook
Population: 23,359,928 (July 2014) World Factbook
Taiwan, officially the Republic of China, is a state in East Asia. The Republic of China, originally based in mainland China, now governs the island of Taiwan, which makes up over 99% of its territory, as well as Penghu, Kinmen, Matsu, and other minor islands. Wikipedia