Finding the Third Proportional to 9,854,682 and 21,071,272

Step by Step Solution

1. Step 1: Write the proportion equation
   9,854,682 : 21,071,272 = 21,071,272 : x
2. Step 2: Convert to fraction form
   9,854,682/21,071,272 = 21,071,272/x
3. Step 3: Cross multiply
   9,854,682x = 21,071,272 × 21,071,272
4. Step 4: Simplify right side
   9,854,682x = 443,998,503,697,984
5. Step 5: Solve for x
   x = 443,998,503,697,984/9,854,682
6. Step 6: Final answer
   x = 45,054,574.43