Finding the Third Proportional to 2,572,416 and 5,587,680

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572,416 : 5,587,680 = 5,587,680 : x
2. Step 2: Convert to fraction form
   2,572,416/5,587,680 = 5,587,680/x
3. Step 3: Cross multiply
   2,572,416x = 5,587,680 × 5,587,680
4. Step 4: Simplify right side
   2,572,416x = 31,222,167,782,400
5. Step 5: Solve for x
   x = 31,222,167,782,400/2,572,416
6. Step 6: Final answer
   x = 12,137,293.42