Finding the Third Proportional to 31,861.50 and 74,415

Step by Step Solution

1. Step 1: Write the proportion equation
   31,861.50 : 74,415 = 74,415 : x
2. Step 2: Convert to fraction form
   31,861.50/74,415 = 74,415/x
3. Step 3: Cross multiply
   31,861.50x = 74,415 × 74,415
4. Step 4: Simplify right side
   31,861.50x = 5,537,592,225
5. Step 5: Solve for x
   x = 5,537,592,225/31,861.50
6. Step 6: Final answer
   x = 173,801.99