Finding the Third Proportional to 28.78 and 61.41

Step by Step Solution

1. Step 1: Write the proportion equation
   28.78 : 61.41 = 61.41 : x
2. Step 2: Convert to fraction form
   28.78/61.41 = 61.41/x
3. Step 3: Cross multiply
   28.78x = 61.41 × 61.41
4. Step 4: Simplify right side
   28.78x = 3,770.73
5. Step 5: Solve for x
   x = 3,770.73/28.78
6. Step 6: Final answer
   x = 131.01