Finding the Third Proportional to 3,785,724 and 8,256,573

Step by Step Solution

1. Step 1: Write the proportion equation
   3,785,724 : 8,256,573 = 8,256,573 : x
2. Step 2: Convert to fraction form
   3,785,724/8,256,573 = 8,256,573/x
3. Step 3: Cross multiply
   3,785,724x = 8,256,573 × 8,256,573
4. Step 4: Simplify right side
   3,785,724x = 68,170,997,704,329
5. Step 5: Solve for x
   x = 68,170,997,704,329/3,785,724
6. Step 6: Final answer
   x = 18,007,387.15