Finding the Third Proportional to 2,789,972 and 3,948,891

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789,972 : 3,948,891 = 3,948,891 : x
2. Step 2: Convert to fraction form
   2,789,972/3,948,891 = 3,948,891/x
3. Step 3: Cross multiply
   2,789,972x = 3,948,891 × 3,948,891
4. Step 4: Simplify right side
   2,789,972x = 15,593,740,129,881
5. Step 5: Solve for x
   x = 15,593,740,129,881/2,789,972
6. Step 6: Final answer
   x = 5,589,210.26