Finding the Third Proportional to 2,657,880 and 3,986,000

Step by Step Solution

1. Step 1: Write the proportion equation
   2,657,880 : 3,986,000 = 3,986,000 : x
2. Step 2: Convert to fraction form
   2,657,880/3,986,000 = 3,986,000/x
3. Step 3: Cross multiply
   2,657,880x = 3,986,000 × 3,986,000
4. Step 4: Simplify right side
   2,657,880x = 15,888,196,000,000
5. Step 5: Solve for x
   x = 15,888,196,000,000/2,657,880
6. Step 6: Final answer
   x = 5,977,770.25