Marape is a senior member of the ruling PNC Party and declared winner of Tari-Pori electorate of Hela Province.
Makiba, who stood as an independent candidate, was declared after polling 23,460 on Sunday.
On arrival at 12:30pm, the member-elect was met at the Government's air wing at Jackson’s International Airport by Prime Minister Peter O'Neill.
O’Neill is PNC Party leader.
However, the PM denied that the new member elect has joined the PNC Party camp.
"We will let them (independent candidates) make their own decisions."