Finding the Third Proportional to 8,205,680 and 17,856,256

Step by Step Solution

1. Step 1: Write the proportion equation
   8,205,680 : 17,856,256 = 17,856,256 : x
2. Step 2: Convert to fraction form
   8,205,680/17,856,256 = 17,856,256/x
3. Step 3: Cross multiply
   8,205,680x = 17,856,256 × 17,856,256
4. Step 4: Simplify right side
   8,205,680x = 318,845,878,337,536
5. Step 5: Solve for x
   x = 318,845,878,337,536/8,205,680
6. Step 6: Final answer
   x = 38,856,728.31