Finding the Third Proportional to 122,421.38 and 259,524

Step by Step Solution

1. Step 1: Write the proportion equation
   122,421.38 : 259,524 = 259,524 : x
2. Step 2: Convert to fraction form
   122,421.38/259,524 = 259,524/x
3. Step 3: Cross multiply
   122,421.38x = 259,524 × 259,524
4. Step 4: Simplify right side
   122,421.38x = 67,352,706,576
5. Step 5: Solve for x
   x = 67,352,706,576/122,421.38
6. Step 6: Final answer
   x = 550,171.13