Finding the Third Proportional to 123,951 and 255,240

Step by Step Solution

1. Step 1: Write the proportion equation
   123,951 : 255,240 = 255,240 : x
2. Step 2: Convert to fraction form
   123,951/255,240 = 255,240/x
3. Step 3: Cross multiply
   123,951x = 255,240 × 255,240
4. Step 4: Simplify right side
   123,951x = 65,147,457,600
5. Step 5: Solve for x
   x = 65,147,457,600/123,951
6. Step 6: Final answer
   x = 525,590.42