Finding the Third Proportional to 441,304 and 681,928

Step by Step Solution

1. Step 1: Write the proportion equation
   441,304 : 681,928 = 681,928 : x
2. Step 2: Convert to fraction form
   441,304/681,928 = 681,928/x
3. Step 3: Cross multiply
   441,304x = 681,928 × 681,928
4. Step 4: Simplify right side
   441,304x = 465,025,797,184
5. Step 5: Solve for x
   x = 465,025,797,184/441,304
6. Step 6: Final answer
   x = 1,053,753.87