Finding the Third Proportional to 123,960 and 254,512

Step by Step Solution

1. Step 1: Write the proportion equation
   123,960 : 254,512 = 254,512 : x
2. Step 2: Convert to fraction form
   123,960/254,512 = 254,512/x
3. Step 3: Cross multiply
   123,960x = 254,512 × 254,512
4. Step 4: Simplify right side
   123,960x = 64,776,358,144
5. Step 5: Solve for x
   x = 64,776,358,144/123,960
6. Step 6: Final answer
   x = 522,558.55