Finding the Third Proportional to 3,940,908 and 8,471,184

Step by Step Solution

1. Step 1: Write the proportion equation
   3,940,908 : 8,471,184 = 8,471,184 : x
2. Step 2: Convert to fraction form
   3,940,908/8,471,184 = 8,471,184/x
3. Step 3: Cross multiply
   3,940,908x = 8,471,184 × 8,471,184
4. Step 4: Simplify right side
   3,940,908x = 71,760,958,361,856
5. Step 5: Solve for x
   x = 71,760,958,361,856/3,940,908
6. Step 6: Final answer
   x = 18,209,244.76