Finding the Third Proportional to 2,540,662 and 5,290,411

Step by Step Solution

1. Step 1: Write the proportion equation
   2,540,662 : 5,290,411 = 5,290,411 : x
2. Step 2: Convert to fraction form
   2,540,662/5,290,411 = 5,290,411/x
3. Step 3: Cross multiply
   2,540,662x = 5,290,411 × 5,290,411
4. Step 4: Simplify right side
   2,540,662x = 27,988,448,548,921
5. Step 5: Solve for x
   x = 27,988,448,548,921/2,540,662
6. Step 6: Final answer
   x = 11,016,203.08