Finding the Third Proportional to 441,281.50 and 681,892.50

Step by Step Solution

1. Step 1: Write the proportion equation
   441,281.50 : 681,892.50 = 681,892.50 : x
2. Step 2: Convert to fraction form
   441,281.50/681,892.50 = 681,892.50/x
3. Step 3: Cross multiply
   441,281.50x = 681,892.50 × 681,892.50
4. Step 4: Simplify right side
   441,281.50x = 464,977,381,556.25
5. Step 5: Solve for x
   x = 464,977,381,556.25/441,281.50
6. Step 6: Final answer
   x = 1,053,697.88