Finding the Third Proportional to 71,661 and 156,958.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,661 : 156,958.50 = 156,958.50 : x
2. Step 2: Convert to fraction form
   71,661/156,958.50 = 156,958.50/x
3. Step 3: Cross multiply
   71,661x = 156,958.50 × 156,958.50
4. Step 4: Simplify right side
   71,661x = 24,635,970,722.25
5. Step 5: Solve for x
   x = 24,635,970,722.25/71,661
6. Step 6: Final answer
   x = 343,784.91