Finding the Third Proportional to 2,408,778 and 5,237,460

Step by Step Solution

1. Step 1: Write the proportion equation
   2,408,778 : 5,237,460 = 5,237,460 : x
2. Step 2: Convert to fraction form
   2,408,778/5,237,460 = 5,237,460/x
3. Step 3: Cross multiply
   2,408,778x = 5,237,460 × 5,237,460
4. Step 4: Simplify right side
   2,408,778x = 27,430,987,251,600
5. Step 5: Solve for x
   x = 27,430,987,251,600/2,408,778
6. Step 6: Final answer
   x = 11,387,926.68