Finding the Third Proportional to 3,785,728 and 8,256,582

Step by Step Solution

1. Step 1: Write the proportion equation
   3,785,728 : 8,256,582 = 8,256,582 : x
2. Step 2: Convert to fraction form
   3,785,728/8,256,582 = 8,256,582/x
3. Step 3: Cross multiply
   3,785,728x = 8,256,582 × 8,256,582
4. Step 4: Simplify right side
   3,785,728x = 68,171,146,322,724
5. Step 5: Solve for x
   x = 68,171,146,322,724/3,785,728
6. Step 6: Final answer
   x = 18,007,407.38