Finding the Third Proportional to 4,544,142 and 9,796,872

Step by Step Solution

1. Step 1: Write the proportion equation
   4,544,142 : 9,796,872 = 9,796,872 : x
2. Step 2: Convert to fraction form
   4,544,142/9,796,872 = 9,796,872/x
3. Step 3: Cross multiply
   4,544,142x = 9,796,872 × 9,796,872
4. Step 4: Simplify right side
   4,544,142x = 95,978,700,984,384
5. Step 5: Solve for x
   x = 95,978,700,984,384/4,544,142
6. Step 6: Final answer
   x = 21,121,413.24