Finding the Third Proportional to 2,857,616 and 4,353,418

Step by Step Solution

1. Step 1: Write the proportion equation
   2,857,616 : 4,353,418 = 4,353,418 : x
2. Step 2: Convert to fraction form
   2,857,616/4,353,418 = 4,353,418/x
3. Step 3: Cross multiply
   2,857,616x = 4,353,418 × 4,353,418
4. Step 4: Simplify right side
   2,857,616x = 18,952,248,282,724
5. Step 5: Solve for x
   x = 18,952,248,282,724/2,857,616
6. Step 6: Final answer
   x = 6,632,188.61