Finding the Third Proportional to 4,147,974 and 8,627,040

Step by Step Solution

1. Step 1: Write the proportion equation
   4,147,974 : 8,627,040 = 8,627,040 : x
2. Step 2: Convert to fraction form
   4,147,974/8,627,040 = 8,627,040/x
3. Step 3: Cross multiply
   4,147,974x = 8,627,040 × 8,627,040
4. Step 4: Simplify right side
   4,147,974x = 74,425,819,161,600
5. Step 5: Solve for x
   x = 74,425,819,161,600/4,147,974
6. Step 6: Final answer
   x = 17,942,691.82