Finding the Third Proportional to 234,639 and 363,487.50

Step by Step Solution

1. Step 1: Write the proportion equation
   234,639 : 363,487.50 = 363,487.50 : x
2. Step 2: Convert to fraction form
   234,639/363,487.50 = 363,487.50/x
3. Step 3: Cross multiply
   234,639x = 363,487.50 × 363,487.50
4. Step 4: Simplify right side
   234,639x = 132,123,162,656.25
5. Step 5: Solve for x
   x = 132,123,162,656.25/234,639
6. Step 6: Final answer
   x = 563,091.23