Finding the Third Proportional to 122,404 and 172,367

Step by Step Solution

1. Step 1: Write the proportion equation
   122,404 : 172,367 = 172,367 : x
2. Step 2: Convert to fraction form
   122,404/172,367 = 172,367/x
3. Step 3: Cross multiply
   122,404x = 172,367 × 172,367
4. Step 4: Simplify right side
   122,404x = 29,710,382,689
5. Step 5: Solve for x
   x = 29,710,382,689/122,404
6. Step 6: Final answer
   x = 242,723.95