Finding the Third Proportional to 1,156,728 and 1,728,288

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156,728 : 1,728,288 = 1,728,288 : x
2. Step 2: Convert to fraction form
   1,156,728/1,728,288 = 1,728,288/x
3. Step 3: Cross multiply
   1,156,728x = 1,728,288 × 1,728,288
4. Step 4: Simplify right side
   1,156,728x = 2,986,979,410,944
5. Step 5: Solve for x
   x = 2,986,979,410,944/1,156,728
6. Step 6: Final answer
   x = 2,582,266.02