Finding the Third Proportional to 332,109 and 687,847.50

Step by Step Solution

1. Step 1: Write the proportion equation
   332,109 : 687,847.50 = 687,847.50 : x
2. Step 2: Convert to fraction form
   332,109/687,847.50 = 687,847.50/x
3. Step 3: Cross multiply
   332,109x = 687,847.50 × 687,847.50
4. Step 4: Simplify right side
   332,109x = 473,134,183,256.25
5. Step 5: Solve for x
   x = 473,134,183,256.25/332,109
6. Step 6: Final answer
   x = 1,424,635.23