Finding the Third Proportional to 113,728 and 248,960

Step by Step Solution

1. Step 1: Write the proportion equation
   113,728 : 248,960 = 248,960 : x
2. Step 2: Convert to fraction form
   113,728/248,960 = 248,960/x
3. Step 3: Cross multiply
   113,728x = 248,960 × 248,960
4. Step 4: Simplify right side
   113,728x = 61,981,081,600
5. Step 5: Solve for x
   x = 61,981,081,600/113,728
6. Step 6: Final answer
   x = 544,994.03