Finding the Third Proportional to 1,129,728 and 1,660,000

Step by Step Solution

1. Step 1: Write the proportion equation
   1,129,728 : 1,660,000 = 1,660,000 : x
2. Step 2: Convert to fraction form
   1,129,728/1,660,000 = 1,660,000/x
3. Step 3: Cross multiply
   1,129,728x = 1,660,000 × 1,660,000
4. Step 4: Simplify right side
   1,129,728x = 2,755,600,000,000
5. Step 5: Solve for x
   x = 2,755,600,000,000/1,129,728
6. Step 6: Final answer
   x = 2,439,171.20