Finding the Third Proportional to 122,367.50 and 172,323

Step by Step Solution

1. Step 1: Write the proportion equation
   122,367.50 : 172,323 = 172,323 : x
2. Step 2: Convert to fraction form
   122,367.50/172,323 = 172,323/x
3. Step 3: Cross multiply
   122,367.50x = 172,323 × 172,323
4. Step 4: Simplify right side
   122,367.50x = 29,695,216,329
5. Step 5: Solve for x
   x = 29,695,216,329/122,367.50
6. Step 6: Final answer
   x = 242,672.41