Finding the Third Proportional to 140,752.50 and 207,405

Step by Step Solution

1. Step 1: Write the proportion equation
   140,752.50 : 207,405 = 207,405 : x
2. Step 2: Convert to fraction form
   140,752.50/207,405 = 207,405/x
3. Step 3: Cross multiply
   140,752.50x = 207,405 × 207,405
4. Step 4: Simplify right side
   140,752.50x = 43,016,834,025
5. Step 5: Solve for x
   x = 43,016,834,025/140,752.50
6. Step 6: Final answer
   x = 305,620.39