Finding the Third Proportional to 572,500.50 and 777,510

Step by Step Solution

1. Step 1: Write the proportion equation
   572,500.50 : 777,510 = 777,510 : x
2. Step 2: Convert to fraction form
   572,500.50/777,510 = 777,510/x
3. Step 3: Cross multiply
   572,500.50x = 777,510 × 777,510
4. Step 4: Simplify right side
   572,500.50x = 604,521,800,100
5. Step 5: Solve for x
   x = 604,521,800,100/572,500.50
6. Step 6: Final answer
   x = 1,055,932.35