Finding the Third Proportional to 111,370 and 172,713

Step by Step Solution

1. Step 1: Write the proportion equation
   111,370 : 172,713 = 172,713 : x
2. Step 2: Convert to fraction form
   111,370/172,713 = 172,713/x
3. Step 3: Cross multiply
   111,370x = 172,713 × 172,713
4. Step 4: Simplify right side
   111,370x = 29,829,780,369
5. Step 5: Solve for x
   x = 29,829,780,369/111,370
6. Step 6: Final answer
   x = 267,843.95