Finding the Third Proportional to 405,581.50 and 938,891.50

Step by Step Solution

1. Step 1: Write the proportion equation
   405,581.50 : 938,891.50 = 938,891.50 : x
2. Step 2: Convert to fraction form
   405,581.50/938,891.50 = 938,891.50/x
3. Step 3: Cross multiply
   405,581.50x = 938,891.50 × 938,891.50
4. Step 4: Simplify right side
   405,581.50x = 881,517,248,772.25
5. Step 5: Solve for x
   x = 881,517,248,772.25/405,581.50
6. Step 6: Final answer
   x = 2,173,465.13