Finding the Third Proportional to 678,802.50 and 1,002,361.50

Step by Step Solution

1. Step 1: Write the proportion equation
   678,802.50 : 1,002,361.50 = 1,002,361.50 : x
2. Step 2: Convert to fraction form
   678,802.50/1,002,361.50 = 1,002,361.50/x
3. Step 3: Cross multiply
   678,802.50x = 1,002,361.50 × 1,002,361.50
4. Step 4: Simplify right side
   678,802.50x = 1,004,728,576,682.25
5. Step 5: Solve for x
   x = 1,004,728,576,682.25/678,802.50
6. Step 6: Final answer
   x = 1,480,148.61