Finding the Third Proportional to 73,702.50 and 173,255.25

Step by Step Solution

1. Step 1: Write the proportion equation
   73,702.50 : 173,255.25 = 173,255.25 : x
2. Step 2: Convert to fraction form
   73,702.50/173,255.25 = 173,255.25/x
3. Step 3: Cross multiply
   73,702.50x = 173,255.25 × 173,255.25
4. Step 4: Simplify right side
   73,702.50x = 30,017,381,652.56
5. Step 5: Solve for x
   x = 30,017,381,652.56/73,702.50
6. Step 6: Final answer
   x = 407,277.66