Finding the Third Proportional to 15.09 and 33.56

Step by Step Solution

1. Step 1: Write the proportion equation
   15.09 : 33.56 = 33.56 : x
2. Step 2: Convert to fraction form
   15.09/33.56 = 33.56/x
3. Step 3: Cross multiply
   15.09x = 33.56 × 33.56
4. Step 4: Simplify right side
   15.09x = 1,126.47
5. Step 5: Solve for x
   x = 1,126.47/15.09
6. Step 6: Final answer
   x = 74.64