Finding the Third Proportional to 111,111.75 and 239,598

Step by Step Solution

1. Step 1: Write the proportion equation
   111,111.75 : 239,598 = 239,598 : x
2. Step 2: Convert to fraction form
   111,111.75/239,598 = 239,598/x
3. Step 3: Cross multiply
   111,111.75x = 239,598 × 239,598
4. Step 4: Simplify right side
   111,111.75x = 57,407,201,604
5. Step 5: Solve for x
   x = 57,407,201,604/111,111.75
6. Step 6: Final answer
   x = 516,661.84