Finding the Third Proportional to 62.63 and 136.31

Step by Step Solution

1. Step 1: Write the proportion equation
   62.63 : 136.31 = 136.31 : x
2. Step 2: Convert to fraction form
   62.63/136.31 = 136.31/x
3. Step 3: Cross multiply
   62.63x = 136.31 × 136.31
4. Step 4: Simplify right side
   62.63x = 18,581.10
5. Step 5: Solve for x
   x = 18,581.10/62.63
6. Step 6: Final answer
   x = 296.70