Finding the Third Proportional to 2,171,496 and 4,288,492

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171,496 : 4,288,492 = 4,288,492 : x
2. Step 2: Convert to fraction form
   2,171,496/4,288,492 = 4,288,492/x
3. Step 3: Cross multiply
   2,171,496x = 4,288,492 × 4,288,492
4. Step 4: Simplify right side
   2,171,496x = 18,391,163,634,064
5. Step 5: Solve for x
   x = 18,391,163,634,064/2,171,496
6. Step 6: Final answer
   x = 8,469,351.84