Finding the Third Proportional to 3,787,776 and 8,137,728

Step by Step Solution

1. Step 1: Write the proportion equation
   3,787,776 : 8,137,728 = 8,137,728 : x
2. Step 2: Convert to fraction form
   3,787,776/8,137,728 = 8,137,728/x
3. Step 3: Cross multiply
   3,787,776x = 8,137,728 × 8,137,728
4. Step 4: Simplify right side
   3,787,776x = 66,222,617,001,984
5. Step 5: Solve for x
   x = 66,222,617,001,984/3,787,776
6. Step 6: Final answer
   x = 17,483,245.31