Finding the Third Proportional to 61.75 and 133.56

Step by Step Solution

1. Step 1: Write the proportion equation
   61.75 : 133.56 = 133.56 : x
2. Step 2: Convert to fraction form
   61.75/133.56 = 133.56/x
3. Step 3: Cross multiply
   61.75x = 133.56 × 133.56
4. Step 4: Simplify right side
   61.75x = 17,838.94
5. Step 5: Solve for x
   x = 17,838.94/61.75
6. Step 6: Final answer
   x = 288.89