Finding the Third Proportional to 103,689 and 151,861.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,689 : 151,861.50 = 151,861.50 : x
2. Step 2: Convert to fraction form
   103,689/151,861.50 = 151,861.50/x
3. Step 3: Cross multiply
   103,689x = 151,861.50 × 151,861.50
4. Step 4: Simplify right side
   103,689x = 23,061,915,182.25
5. Step 5: Solve for x
   x = 23,061,915,182.25/103,689
6. Step 6: Final answer
   x = 222,414.29