Finding the Third Proportional to 111,388.50 and 231,957

Step by Step Solution

1. Step 1: Write the proportion equation
   111,388.50 : 231,957 = 231,957 : x
2. Step 2: Convert to fraction form
   111,388.50/231,957 = 231,957/x
3. Step 3: Cross multiply
   111,388.50x = 231,957 × 231,957
4. Step 4: Simplify right side
   111,388.50x = 53,804,049,849
5. Step 5: Solve for x
   x = 53,804,049,849/111,388.50
6. Step 6: Final answer
   x = 483,030.56