Finding the Third Proportional to 3,816,912 and 8,231,648

Step by Step Solution

1. Step 1: Write the proportion equation
   3,816,912 : 8,231,648 = 8,231,648 : x
2. Step 2: Convert to fraction form
   3,816,912/8,231,648 = 8,231,648/x
3. Step 3: Cross multiply
   3,816,912x = 8,231,648 × 8,231,648
4. Step 4: Simplify right side
   3,816,912x = 67,760,028,795,904
5. Step 5: Solve for x
   x = 67,760,028,795,904/3,816,912
6. Step 6: Final answer
   x = 17,752,578.21