Finding the Third Proportional to 572,507.50 and 777,522.50

Step by Step Solution

1. Step 1: Write the proportion equation
   572,507.50 : 777,522.50 = 777,522.50 : x
2. Step 2: Convert to fraction form
   572,507.50/777,522.50 = 777,522.50/x
3. Step 3: Cross multiply
   572,507.50x = 777,522.50 × 777,522.50
4. Step 4: Simplify right side
   572,507.50x = 604,541,238,006.25
5. Step 5: Solve for x
   x = 604,541,238,006.25/572,507.50
6. Step 6: Final answer
   x = 1,055,953.39