Finding the Third Proportional to 2,555,359 and 5,629,216

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555,359 : 5,629,216 = 5,629,216 : x
2. Step 2: Convert to fraction form
   2,555,359/5,629,216 = 5,629,216/x
3. Step 3: Cross multiply
   2,555,359x = 5,629,216 × 5,629,216
4. Step 4: Simplify right side
   2,555,359x = 31,688,072,774,656
5. Step 5: Solve for x
   x = 31,688,072,774,656/2,555,359
6. Step 6: Final answer
   x = 12,400,634.42