Finding the Third Proportional to 2,808,909 and 4,242,879

Step by Step Solution

1. Step 1: Write the proportion equation
   2,808,909 : 4,242,879 = 4,242,879 : x
2. Step 2: Convert to fraction form
   2,808,909/4,242,879 = 4,242,879/x
3. Step 3: Cross multiply
   2,808,909x = 4,242,879 × 4,242,879
4. Step 4: Simplify right side
   2,808,909x = 18,002,022,208,641
5. Step 5: Solve for x
   x = 18,002,022,208,641/2,808,909
6. Step 6: Final answer
   x = 6,408,901.89