Finding the Third Proportional to 332,466.50 and 688,582

Step by Step Solution

1. Step 1: Write the proportion equation
   332,466.50 : 688,582 = 688,582 : x
2. Step 2: Convert to fraction form
   332,466.50/688,582 = 688,582/x
3. Step 3: Cross multiply
   332,466.50x = 688,582 × 688,582
4. Step 4: Simplify right side
   332,466.50x = 474,145,170,724
5. Step 5: Solve for x
   x = 474,145,170,724/332,466.50
6. Step 6: Final answer
   x = 1,426,144.20