Finding the Third Proportional to 4,197,330 and 9,177,612

Step by Step Solution

1. Step 1: Write the proportion equation
   4,197,330 : 9,177,612 = 9,177,612 : x
2. Step 2: Convert to fraction form
   4,197,330/9,177,612 = 9,177,612/x
3. Step 3: Cross multiply
   4,197,330x = 9,177,612 × 9,177,612
4. Step 4: Simplify right side
   4,197,330x = 84,228,562,022,544
5. Step 5: Solve for x
   x = 84,228,562,022,544/4,197,330
6. Step 6: Final answer
   x = 20,067,176.52