Finding the Third Proportional to 2,018,520 and 4,408,560

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018,520 : 4,408,560 = 4,408,560 : x
2. Step 2: Convert to fraction form
   2,018,520/4,408,560 = 4,408,560/x
3. Step 3: Cross multiply
   2,018,520x = 4,408,560 × 4,408,560
4. Step 4: Simplify right side
   2,018,520x = 19,435,401,273,600
5. Step 5: Solve for x
   x = 19,435,401,273,600/2,018,520
6. Step 6: Final answer
   x = 9,628,540.35