Finding the Third Proportional to 572,329.50 and 777,300.50

Step by Step Solution

1. Step 1: Write the proportion equation
   572,329.50 : 777,300.50 = 777,300.50 : x
2. Step 2: Convert to fraction form
   572,329.50/777,300.50 = 777,300.50/x
3. Step 3: Cross multiply
   572,329.50x = 777,300.50 × 777,300.50
4. Step 4: Simplify right side
   572,329.50x = 604,196,067,300.25
5. Step 5: Solve for x
   x = 604,196,067,300.25/572,329.50
6. Step 6: Final answer
   x = 1,055,678.71