Finding the Third Proportional to 1,283,874 and 1,986,891

Step by Step Solution

1. Step 1: Write the proportion equation
   1,283,874 : 1,986,891 = 1,986,891 : x
2. Step 2: Convert to fraction form
   1,283,874/1,986,891 = 1,986,891/x
3. Step 3: Cross multiply
   1,283,874x = 1,986,891 × 1,986,891
4. Step 4: Simplify right side
   1,283,874x = 3,947,735,845,881
5. Step 5: Solve for x
   x = 3,947,735,845,881/1,283,874
6. Step 6: Final answer
   x = 3,074,862.37