Finding the Third Proportional to 28.69 and 62.63

Step by Step Solution

1. Step 1: Write the proportion equation
   28.69 : 62.63 = 62.63 : x
2. Step 2: Convert to fraction form
   28.69/62.63 = 62.63/x
3. Step 3: Cross multiply
   28.69x = 62.63 × 62.63
4. Step 4: Simplify right side
   28.69x = 3,921.89
5. Step 5: Solve for x
   x = 3,921.89/28.69
6. Step 6: Final answer
   x = 136.71