S. Sudan is 2.7 times larger than Ghana.
Area: 238,533 km2 World Factbook
Population: 25,758,108 (July 2014) World Factbook
Ghana, officially called the Republic of Ghana, is a sovereign multinational state and unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic Ocean, in the subregion of West Africa. Wikipedia
Area: 644,329 km2 World Factbook
Population: 11,562,695 (July 2014) World Factbook
South Sudan, officially the Republic of South Sudan, is a landlocked country in northeastern Africa that gained its independence from Sudan in 2011. Its current capital is Juba, which is also its largest city. Wikipedia