Finding the Third Proportional to 63.56 and 138.52

Step by Step Solution

1. Step 1: Write the proportion equation
   63.56 : 138.52 = 138.52 : x
2. Step 2: Convert to fraction form
   63.56/138.52 = 138.52/x
3. Step 3: Cross multiply
   63.56x = 138.52 × 138.52
4. Step 4: Simplify right side
   63.56x = 19,186.58
5. Step 5: Solve for x
   x = 19,186.58/63.56
6. Step 6: Final answer
   x = 301.85