Finding the Third Proportional to 2,981,678 and 3,972,549

Step by Step Solution

1. Step 1: Write the proportion equation
   2,981,678 : 3,972,549 = 3,972,549 : x
2. Step 2: Convert to fraction form
   2,981,678/3,972,549 = 3,972,549/x
3. Step 3: Cross multiply
   2,981,678x = 3,972,549 × 3,972,549
4. Step 4: Simplify right side
   2,981,678x = 15,781,145,557,401
5. Step 5: Solve for x
   x = 15,781,145,557,401/2,981,678
6. Step 6: Final answer
   x = 5,292,706.17