Finding the Third Proportional to 2,550,878 and 5,599,356

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550,878 : 5,599,356 = 5,599,356 : x
2. Step 2: Convert to fraction form
   2,550,878/5,599,356 = 5,599,356/x
3. Step 3: Cross multiply
   2,550,878x = 5,599,356 × 5,599,356
4. Step 4: Simplify right side
   2,550,878x = 31,352,787,614,736
5. Step 5: Solve for x
   x = 31,352,787,614,736/2,550,878
6. Step 6: Final answer
   x = 12,290,978.88