Finding the Third Proportional to 2,559,478 and 3,866,436

Step by Step Solution

1. Step 1: Write the proportion equation
   2,559,478 : 3,866,436 = 3,866,436 : x
2. Step 2: Convert to fraction form
   2,559,478/3,866,436 = 3,866,436/x
3. Step 3: Cross multiply
   2,559,478x = 3,866,436 × 3,866,436
4. Step 4: Simplify right side
   2,559,478x = 14,949,327,342,096
5. Step 5: Solve for x
   x = 14,949,327,342,096/2,559,478
6. Step 6: Final answer
   x = 5,840,771.96