Mexico is a part of North America [1]. What is less obvious is whether Guatemala, Belize, Nicaragua, etc, would fall into N or S America. Central America is a region, like the Middle East, but is not its own continent. Central America is a part of North America [2]. Nathan made a good point that the United Nations considers Mexico a part of Central America [3]. I wonder why [4].
Sear each side, flipping minimally. It should not take long for a crisp brown crust to form. Depending on the heat of your pan, it should take about 2-4 minutes (or less) for each side to finish cooking. When the first side is done, flip your steak and cook the second side for about as long.
Now, you are ready to broil your steak. Depending on the cut of meat you have chosen, broiling can take anywhere from three to 15 minutes. On average, you will want to broil your steak about eight minutes per side. The best way to tell if your steak is done is to watch it while it is broiling. The louder your steak sizzles and pops, the more done it is. You can also tell by the color of your steak's edges.