Finding the Third Proportional to 1,071,855 and 2,231,919

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071,855 : 2,231,919 = 2,231,919 : x
2. Step 2: Convert to fraction form
   1,071,855/2,231,919 = 2,231,919/x
3. Step 3: Cross multiply
   1,071,855x = 2,231,919 × 2,231,919
4. Step 4: Simplify right side
   1,071,855x = 4,981,462,422,561
5. Step 5: Solve for x
   x = 4,981,462,422,561/1,071,855
6. Step 6: Final answer
   x = 4,647,515.22