Finding the Third Proportional to 262,728 and 544,140

Step by Step Solution

1. Step 1: Write the proportion equation
   262,728 : 544,140 = 544,140 : x
2. Step 2: Convert to fraction form
   262,728/544,140 = 544,140/x
3. Step 3: Cross multiply
   262,728x = 544,140 × 544,140
4. Step 4: Simplify right side
   262,728x = 296,088,339,600
5. Step 5: Solve for x
   x = 296,088,339,600/262,728
6. Step 6: Final answer
   x = 1,126,976.72