Finding the Third Proportional to 3,932,784 and 8,412,074

Step by Step Solution

1. Step 1: Write the proportion equation
   3,932,784 : 8,412,074 = 8,412,074 : x
2. Step 2: Convert to fraction form
   3,932,784/8,412,074 = 8,412,074/x
3. Step 3: Cross multiply
   3,932,784x = 8,412,074 × 8,412,074
4. Step 4: Simplify right side
   3,932,784x = 70,762,988,981,476
5. Step 5: Solve for x
   x = 70,762,988,981,476/3,932,784
6. Step 6: Final answer
   x = 17,993,103.35