The correct step necessary to construct a parallel line to a given line through a point not on the line is:
A. With the pointed tip of your compass on a point on the given line, draw an arc that intersects the given line and the line drawn from the point on the given line to the point not on the given line.
This method involves creating an arc that helps transfer the angle from the given line to the new point, ensuring that the new line is parallel to the original line.