Finding the Third Proportional to 17.28 and 37.56

Step by Step Solution

1. Step 1: Write the proportion equation
   17.28 : 37.56 = 37.56 : x
2. Step 2: Convert to fraction form
   17.28/37.56 = 37.56/x
3. Step 3: Cross multiply
   17.28x = 37.56 × 37.56
4. Step 4: Simplify right side
   17.28x = 1,410.94
5. Step 5: Solve for x
   x = 1,410.94/17.28
6. Step 6: Final answer
   x = 81.65