Finding the Third Proportional to 4,039,048 and 8,645,600

Step by Step Solution

1. Step 1: Write the proportion equation
   4,039,048 : 8,645,600 = 8,645,600 : x
2. Step 2: Convert to fraction form
   4,039,048/8,645,600 = 8,645,600/x
3. Step 3: Cross multiply
   4,039,048x = 8,645,600 × 8,645,600
4. Step 4: Simplify right side
   4,039,048x = 74,746,399,360,000
5. Step 5: Solve for x
   x = 74,746,399,360,000/4,039,048
6. Step 6: Final answer
   x = 18,505,944.81