Finding the Third Proportional to 289,132.50 and 626,532

Step by Step Solution

1. Step 1: Write the proportion equation
   289,132.50 : 626,532 = 626,532 : x
2. Step 2: Convert to fraction form
   289,132.50/626,532 = 626,532/x
3. Step 3: Cross multiply
   289,132.50x = 626,532 × 626,532
4. Step 4: Simplify right side
   289,132.50x = 392,542,347,024
5. Step 5: Solve for x
   x = 392,542,347,024/289,132.50
6. Step 6: Final answer
   x = 1,357,655.56