Finding the Third Proportional to 116.25 and 254.63

Step by Step Solution

1. Step 1: Write the proportion equation
   116.25 : 254.63 = 254.63 : x
2. Step 2: Convert to fraction form
   116.25/254.63 = 254.63/x
3. Step 3: Cross multiply
   116.25x = 254.63 × 254.63
4. Step 4: Simplify right side
   116.25x = 64,833.89
5. Step 5: Solve for x
   x = 64,833.89/116.25
6. Step 6: Final answer
   x = 557.71