Finding the Third Proportional to 10,162,638 and 21,161,628

Step by Step Solution

1. Step 1: Write the proportion equation
   10,162,638 : 21,161,628 = 21,161,628 : x
2. Step 2: Convert to fraction form
   10,162,638/21,161,628 = 21,161,628/x
3. Step 3: Cross multiply
   10,162,638x = 21,161,628 × 21,161,628
4. Step 4: Simplify right side
   10,162,638x = 447,814,499,610,384
5. Step 5: Solve for x
   x = 447,814,499,610,384/10,162,638
6. Step 6: Final answer
   x = 44,064,789.04