Finding the Third Proportional to 2,015,012 and 4,257,451

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015,012 : 4,257,451 = 4,257,451 : x
2. Step 2: Convert to fraction form
   2,015,012/4,257,451 = 4,257,451/x
3. Step 3: Cross multiply
   2,015,012x = 4,257,451 × 4,257,451
4. Step 4: Simplify right side
   2,015,012x = 18,125,889,017,401
5. Step 5: Solve for x
   x = 18,125,889,017,401/2,015,012
6. Step 6: Final answer
   x = 8,995,424.85