Finding the Third Proportional to 2,287,778 and 4,879,544

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287,778 : 4,879,544 = 4,879,544 : x
2. Step 2: Convert to fraction form
   2,287,778/4,879,544 = 4,879,544/x
3. Step 3: Cross multiply
   2,287,778x = 4,879,544 × 4,879,544
4. Step 4: Simplify right side
   2,287,778x = 23,809,949,647,936
5. Step 5: Solve for x
   x = 23,809,949,647,936/2,287,778
6. Step 6: Final answer
   x = 10,407,456.34