Finding the Third Proportional to 891,162 and 1,391,418

Step by Step Solution

1. Step 1: Write the proportion equation
   891,162 : 1,391,418 = 1,391,418 : x
2. Step 2: Convert to fraction form
   891,162/1,391,418 = 1,391,418/x
3. Step 3: Cross multiply
   891,162x = 1,391,418 × 1,391,418
4. Step 4: Simplify right side
   891,162x = 1,936,044,050,724
5. Step 5: Solve for x
   x = 1,936,044,050,724/891,162
6. Step 6: Final answer
   x = 2,172,493.95