Finding the Third Proportional to 122,029.50 and 251,592

Step by Step Solution

1. Step 1: Write the proportion equation
   122,029.50 : 251,592 = 251,592 : x
2. Step 2: Convert to fraction form
   122,029.50/251,592 = 251,592/x
3. Step 3: Cross multiply
   122,029.50x = 251,592 × 251,592
4. Step 4: Simplify right side
   122,029.50x = 63,298,534,464
5. Step 5: Solve for x
   x = 63,298,534,464/122,029.50
6. Step 6: Final answer
   x = 518,715.02