Finding the Third Proportional to 411,539.50 and 898,490

Step by Step Solution

1. Step 1: Write the proportion equation
   411,539.50 : 898,490 = 898,490 : x
2. Step 2: Convert to fraction form
   411,539.50/898,490 = 898,490/x
3. Step 3: Cross multiply
   411,539.50x = 898,490 × 898,490
4. Step 4: Simplify right side
   411,539.50x = 807,284,280,100
5. Step 5: Solve for x
   x = 807,284,280,100/411,539.50
6. Step 6: Final answer
   x = 1,961,620.40