Finding the Third Proportional to 455,891 and 992,055

Step by Step Solution

1. Step 1: Write the proportion equation
   455,891 : 992,055 = 992,055 : x
2. Step 2: Convert to fraction form
   455,891/992,055 = 992,055/x
3. Step 3: Cross multiply
   455,891x = 992,055 × 992,055
4. Step 4: Simplify right side
   455,891x = 984,173,123,025
5. Step 5: Solve for x
   x = 984,173,123,025/455,891
6. Step 6: Final answer
   x = 2,158,790.42