Finding the Third Proportional to 610,462.50 and 898,039.50

Step by Step Solution

1. Step 1: Write the proportion equation
   610,462.50 : 898,039.50 = 898,039.50 : x
2. Step 2: Convert to fraction form
   610,462.50/898,039.50 = 898,039.50/x
3. Step 3: Cross multiply
   610,462.50x = 898,039.50 × 898,039.50
4. Step 4: Simplify right side
   610,462.50x = 806,474,943,560.25
5. Step 5: Solve for x
   x = 806,474,943,560.25/610,462.50
6. Step 6: Final answer
   x = 1,321,088.43