Finding the Third Proportional to 111,391.50 and 231,963

Step by Step Solution

1. Step 1: Write the proportion equation
   111,391.50 : 231,963 = 231,963 : x
2. Step 2: Convert to fraction form
   111,391.50/231,963 = 231,963/x
3. Step 3: Cross multiply
   111,391.50x = 231,963 × 231,963
4. Step 4: Simplify right side
   111,391.50x = 53,806,833,369
5. Step 5: Solve for x
   x = 53,806,833,369/111,391.50
6. Step 6: Final answer
   x = 483,042.54