Finding the Third Proportional to 572,064.50 and 776,934.50

Step by Step Solution

1. Step 1: Write the proportion equation
   572,064.50 : 776,934.50 = 776,934.50 : x
2. Step 2: Convert to fraction form
   572,064.50/776,934.50 = 776,934.50/x
3. Step 3: Cross multiply
   572,064.50x = 776,934.50 × 776,934.50
4. Step 4: Simplify right side
   572,064.50x = 603,627,217,290.25
5. Step 5: Solve for x
   x = 603,627,217,290.25/572,064.50
6. Step 6: Final answer
   x = 1,055,173.35