Finding the Third Proportional to 821,560 and 1,098,906

Step by Step Solution

1. Step 1: Write the proportion equation
   821,560 : 1,098,906 = 1,098,906 : x
2. Step 2: Convert to fraction form
   821,560/1,098,906 = 1,098,906/x
3. Step 3: Cross multiply
   821,560x = 1,098,906 × 1,098,906
4. Step 4: Simplify right side
   821,560x = 1,207,594,396,836
5. Step 5: Solve for x
   x = 1,207,594,396,836/821,560
6. Step 6: Final answer
   x = 1,469,879.74