Finding the Third Proportional to 3,816,924 and 8,231,680

Step by Step Solution

1. Step 1: Write the proportion equation
   3,816,924 : 8,231,680 = 8,231,680 : x
2. Step 2: Convert to fraction form
   3,816,924/8,231,680 = 8,231,680/x
3. Step 3: Cross multiply
   3,816,924x = 8,231,680 × 8,231,680
4. Step 4: Simplify right side
   3,816,924x = 67,760,555,622,400
5. Step 5: Solve for x
   x = 67,760,555,622,400/3,816,924
6. Step 6: Final answer
   x = 17,752,660.42