Finding the Third Proportional to 71,400 and 156,810.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,400 : 156,810.50 = 156,810.50 : x
2. Step 2: Convert to fraction form
   71,400/156,810.50 = 156,810.50/x
3. Step 3: Cross multiply
   71,400x = 156,810.50 × 156,810.50
4. Step 4: Simplify right side
   71,400x = 24,589,532,910.25
5. Step 5: Solve for x
   x = 24,589,532,910.25/71,400
6. Step 6: Final answer
   x = 344,391.22