Finding the Third Proportional to 9,852,972 and 21,162,386

Step by Step Solution

1. Step 1: Write the proportion equation
   9,852,972 : 21,162,386 = 21,162,386 : x
2. Step 2: Convert to fraction form
   9,852,972/21,162,386 = 21,162,386/x
3. Step 3: Cross multiply
   9,852,972x = 21,162,386 × 21,162,386
4. Step 4: Simplify right side
   9,852,972x = 447,846,581,212,996
5. Step 5: Solve for x
   x = 447,846,581,212,996/9,852,972
6. Step 6: Final answer
   x = 45,452,943.66