Finding the Third Proportional to 3,952,816 and 8,619,360

Step by Step Solution

1. Step 1: Write the proportion equation
   3,952,816 : 8,619,360 = 8,619,360 : x
2. Step 2: Convert to fraction form
   3,952,816/8,619,360 = 8,619,360/x
3. Step 3: Cross multiply
   3,952,816x = 8,619,360 × 8,619,360
4. Step 4: Simplify right side
   3,952,816x = 74,293,366,809,600
5. Step 5: Solve for x
   x = 74,293,366,809,600/3,952,816
6. Step 6: Final answer
   x = 18,795,048.09