Finding the Third Proportional to 111,228 and 242,040

Step by Step Solution

1. Step 1: Write the proportion equation
   111,228 : 242,040 = 242,040 : x
2. Step 2: Convert to fraction form
   111,228/242,040 = 242,040/x
3. Step 3: Cross multiply
   111,228x = 242,040 × 242,040
4. Step 4: Simplify right side
   111,228x = 58,583,361,600
5. Step 5: Solve for x
   x = 58,583,361,600/111,228
6. Step 6: Final answer
   x = 526,696.17