Finding the Third Proportional to 10,064,198 and 21,721,855

Step by Step Solution

1. Step 1: Write the proportion equation
   10,064,198 : 21,721,855 = 21,721,855 : x
2. Step 2: Convert to fraction form
   10,064,198/21,721,855 = 21,721,855/x
3. Step 3: Cross multiply
   10,064,198x = 21,721,855 × 21,721,855
4. Step 4: Simplify right side
   10,064,198x = 471,838,984,641,025
5. Step 5: Solve for x
   x = 471,838,984,641,025/10,064,198
6. Step 6: Final answer
   x = 46,882,919.50