Finding the Third Proportional to 407,199 and 868,477.50

Step by Step Solution

1. Step 1: Write the proportion equation
   407,199 : 868,477.50 = 868,477.50 : x
2. Step 2: Convert to fraction form
   407,199/868,477.50 = 868,477.50/x
3. Step 3: Cross multiply
   407,199x = 868,477.50 × 868,477.50
4. Step 4: Simplify right side
   407,199x = 754,253,168,006.25
5. Step 5: Solve for x
   x = 754,253,168,006.25/407,199
6. Step 6: Final answer
   x = 1,852,296.22