Finding the Third Proportional to 3,747,292 and 8,168,728

Step by Step Solution

1. Step 1: Write the proportion equation
   3,747,292 : 8,168,728 = 8,168,728 : x
2. Step 2: Convert to fraction form
   3,747,292/8,168,728 = 8,168,728/x
3. Step 3: Cross multiply
   3,747,292x = 8,168,728 × 8,168,728
4. Step 4: Simplify right side
   3,747,292x = 66,728,117,137,984
5. Step 5: Solve for x
   x = 66,728,117,137,984/3,747,292
6. Step 6: Final answer
   x = 17,807,023.62