Final answer:
Haiti is the country located in the western third of Hispaniola and includes Ile de la Gonave. Hispaniola is shared by Haiti and the Dominican Republic.
Step-by-step explanation:
The country that is located in the western third of Hispaniola and includes Ile de la Gonave is Haiti. Hispaniola is an island in the Caribbean that is shared by Haiti and the Dominican Republic. The western side of the island is the French-speaking country of Haiti, while the eastern side is the Spanish-speaking country of the Dominican Republic.