Finding the Third Proportional to 50,990 and 111,830

Step by Step Solution

1. Step 1: Write the proportion equation
   50,990 : 111,830 = 111,830 : x
2. Step 2: Convert to fraction form
   50,990/111,830 = 111,830/x
3. Step 3: Cross multiply
   50,990x = 111,830 × 111,830
4. Step 4: Simplify right side
   50,990x = 12,505,948,900
5. Step 5: Solve for x
   x = 12,505,948,900/50,990
6. Step 6: Final answer
   x = 245,262.78