Finding the Third Proportional to 111,666.94 and 173,042.16

Step by Step Solution

1. Step 1: Write the proportion equation
   111,666.94 : 173,042.16 = 173,042.16 : x
2. Step 2: Convert to fraction form
   111,666.94/173,042.16 = 173,042.16/x
3. Step 3: Cross multiply
   111,666.94x = 173,042.16 × 173,042.16
4. Step 4: Simplify right side
   111,666.94x = 29,943,587,839.65
5. Step 5: Solve for x
   x = 29,943,587,839.65/111,666.94
6. Step 6: Final answer
   x = 268,150.88