Finding the Third Proportional to 111,474 and 244,989

Step by Step Solution

1. Step 1: Write the proportion equation
   111,474 : 244,989 = 244,989 : x
2. Step 2: Convert to fraction form
   111,474/244,989 = 244,989/x
3. Step 3: Cross multiply
   111,474x = 244,989 × 244,989
4. Step 4: Simplify right side
   111,474x = 60,019,610,121
5. Step 5: Solve for x
   x = 60,019,610,121/111,474
6. Step 6: Final answer
   x = 538,418.02