Finding the Third Proportional to 56.25 and 133.88

Step by Step Solution

1. Step 1: Write the proportion equation
   56.25 : 133.88 = 133.88 : x
2. Step 2: Convert to fraction form
   56.25/133.88 = 133.88/x
3. Step 3: Cross multiply
   56.25x = 133.88 × 133.88
4. Step 4: Simplify right side
   56.25x = 17,922.52
5. Step 5: Solve for x
   x = 17,922.52/56.25
6. Step 6: Final answer
   x = 318.62