Finding the Third Proportional to 4,040,600 and 8,978,008

Step by Step Solution

1. Step 1: Write the proportion equation
   4,040,600 : 8,978,008 = 8,978,008 : x
2. Step 2: Convert to fraction form
   4,040,600/8,978,008 = 8,978,008/x
3. Step 3: Cross multiply
   4,040,600x = 8,978,008 × 8,978,008
4. Step 4: Simplify right side
   4,040,600x = 80,604,627,648,064
5. Step 5: Solve for x
   x = 80,604,627,648,064/4,040,600
6. Step 6: Final answer
   x = 19,948,677.83