Finding the Third Proportional to 124.03 and 259.45

Step by Step Solution

1. Step 1: Write the proportion equation
   124.03 : 259.45 = 259.45 : x
2. Step 2: Convert to fraction form
   124.03/259.45 = 259.45/x
3. Step 3: Cross multiply
   124.03x = 259.45 × 259.45
4. Step 4: Simplify right side
   124.03x = 67,315.92
5. Step 5: Solve for x
   x = 67,315.92/124.03
6. Step 6: Final answer
   x = 542.73