Finding the Third Proportional to 576,804 and 860,425.50

Step by Step Solution

1. Step 1: Write the proportion equation
   576,804 : 860,425.50 = 860,425.50 : x
2. Step 2: Convert to fraction form
   576,804/860,425.50 = 860,425.50/x
3. Step 3: Cross multiply
   576,804x = 860,425.50 × 860,425.50
4. Step 4: Simplify right side
   576,804x = 740,332,041,050.25
5. Step 5: Solve for x
   x = 740,332,041,050.25/576,804
6. Step 6: Final answer
   x = 1,283,507.12