Finding the Third Proportional to 72.56 and 104.63

Step by Step Solution

1. Step 1: Write the proportion equation
   72.56 : 104.63 = 104.63 : x
2. Step 2: Convert to fraction form
   72.56/104.63 = 104.63/x
3. Step 3: Cross multiply
   72.56x = 104.63 × 104.63
4. Step 4: Simplify right side
   72.56x = 10,946.39
5. Step 5: Solve for x
   x = 10,946.39/72.56
6. Step 6: Final answer
   x = 150.85