Finding the Third Proportional to 111,375 and 172,337.63

Step by Step Solution

1. Step 1: Write the proportion equation
   111,375 : 172,337.63 = 172,337.63 : x
2. Step 2: Convert to fraction form
   111,375/172,337.63 = 172,337.63/x
3. Step 3: Cross multiply
   111,375x = 172,337.63 × 172,337.63
4. Step 4: Simplify right side
   111,375x = 29,700,256,990.64
5. Step 5: Solve for x
   x = 29,700,256,990.64/111,375
6. Step 6: Final answer
   x = 266,668.97