To double the angle ∠XYZ, Isha needs to ensure that he creates an identical angle with ray YX as one of its sides. The appropriate next step in the construction after drawing the initial arc is:
He must draw an arc that intersects the larger arc by placing the pointed end on point X.
This step allows him to find the appropriate location for the second ray in the doubled angle based on the intersection of the arcs, essentially aiding in the construction of the angle.