Finding the Third Proportional to 4,401,441 and 9,642,690

Step by Step Solution

1. Step 1: Write the proportion equation
   4,401,441 : 9,642,690 = 9,642,690 : x
2. Step 2: Convert to fraction form
   4,401,441/9,642,690 = 9,642,690/x
3. Step 3: Cross multiply
   4,401,441x = 9,642,690 × 9,642,690
4. Step 4: Simplify right side
   4,401,441x = 92,981,470,436,100
5. Step 5: Solve for x
   x = 92,981,470,436,100/4,401,441
6. Step 6: Final answer
   x = 21,125,233.86