Finding the Third Proportional to 29,623.50 and 63,931.50

Step by Step Solution

1. Step 1: Write the proportion equation
   29,623.50 : 63,931.50 = 63,931.50 : x
2. Step 2: Convert to fraction form
   29,623.50/63,931.50 = 63,931.50/x
3. Step 3: Cross multiply
   29,623.50x = 63,931.50 × 63,931.50
4. Step 4: Simplify right side
   29,623.50x = 4,087,236,692.25
5. Step 5: Solve for x
   x = 4,087,236,692.25/29,623.50
6. Step 6: Final answer
   x = 137,972.78