Finding the Third Proportional to 408,249.75 and 886,605

Step by Step Solution

1. Step 1: Write the proportion equation
   408,249.75 : 886,605 = 886,605 : x
2. Step 2: Convert to fraction form
   408,249.75/886,605 = 886,605/x
3. Step 3: Cross multiply
   408,249.75x = 886,605 × 886,605
4. Step 4: Simplify right side
   408,249.75x = 786,068,426,025
5. Step 5: Solve for x
   x = 786,068,426,025/408,249.75
6. Step 6: Final answer
   x = 1,925,459.66