Finding the Third Proportional to 27.30 and 72.76

Step by Step Solution

1. Step 1: Write the proportion equation
   27.30 : 72.76 = 72.76 : x
2. Step 2: Convert to fraction form
   27.30/72.76 = 72.76/x
3. Step 3: Cross multiply
   27.30x = 72.76 × 72.76
4. Step 4: Simplify right side
   27.30x = 5,294.27
5. Step 5: Solve for x
   x = 5,294.27/27.30
6. Step 6: Final answer
   x = 193.90