Finding the Third Proportional to 49,920 and 109,240

Step by Step Solution

1. Step 1: Write the proportion equation
   49,920 : 109,240 = 109,240 : x
2. Step 2: Convert to fraction form
   49,920/109,240 = 109,240/x
3. Step 3: Cross multiply
   49,920x = 109,240 × 109,240
4. Step 4: Simplify right side
   49,920x = 11,933,377,600
5. Step 5: Solve for x
   x = 11,933,377,600/49,920
6. Step 6: Final answer
   x = 239,050.03