Finding the Third Proportional to 9,819,499 and 21,338,705

Step by Step Solution

1. Step 1: Write the proportion equation
   9,819,499 : 21,338,705 = 21,338,705 : x
2. Step 2: Convert to fraction form
   9,819,499/21,338,705 = 21,338,705/x
3. Step 3: Cross multiply
   9,819,499x = 21,338,705 × 21,338,705
4. Step 4: Simplify right side
   9,819,499x = 455,340,331,077,025
5. Step 5: Solve for x
   x = 455,340,331,077,025/9,819,499
6. Step 6: Final answer
   x = 46,371,034.93