Finding the Third Proportional to 200,882 and 445,820

Step by Step Solution

1. Step 1: Write the proportion equation
   200,882 : 445,820 = 445,820 : x
2. Step 2: Convert to fraction form
   200,882/445,820 = 445,820/x
3. Step 3: Cross multiply
   200,882x = 445,820 × 445,820
4. Step 4: Simplify right side
   200,882x = 198,755,472,400
5. Step 5: Solve for x
   x = 198,755,472,400/200,882
6. Step 6: Final answer
   x = 989,414.05