Finding the Third Proportional to 111,339.50 and 233,620

Step by Step Solution

1. Step 1: Write the proportion equation
   111,339.50 : 233,620 = 233,620 : x
2. Step 2: Convert to fraction form
   111,339.50/233,620 = 233,620/x
3. Step 3: Cross multiply
   111,339.50x = 233,620 × 233,620
4. Step 4: Simplify right side
   111,339.50x = 54,578,304,400
5. Step 5: Solve for x
   x = 54,578,304,400/111,339.50
6. Step 6: Final answer
   x = 490,197.14