Finding the Third Proportional to 122,359.50 and 251,307

Step by Step Solution

1. Step 1: Write the proportion equation
   122,359.50 : 251,307 = 251,307 : x
2. Step 2: Convert to fraction form
   122,359.50/251,307 = 251,307/x
3. Step 3: Cross multiply
   122,359.50x = 251,307 × 251,307
4. Step 4: Simplify right side
   122,359.50x = 63,155,208,249
5. Step 5: Solve for x
   x = 63,155,208,249/122,359.50
6. Step 6: Final answer
   x = 516,144.71