Finding the Third Proportional to 9,825,842 and 21,144,676

Step by Step Solution

1. Step 1: Write the proportion equation
   9,825,842 : 21,144,676 = 21,144,676 : x
2. Step 2: Convert to fraction form
   9,825,842/21,144,676 = 21,144,676/x
3. Step 3: Cross multiply
   9,825,842x = 21,144,676 × 21,144,676
4. Step 4: Simplify right side
   9,825,842x = 447,097,323,144,976
5. Step 5: Solve for x
   x = 447,097,323,144,976/9,825,842
6. Step 6: Final answer
   x = 45,502,189.34