Finding the Third Proportional to 15.84 and 34.72

Step by Step Solution

1. Step 1: Write the proportion equation
   15.84 : 34.72 = 34.72 : x
2. Step 2: Convert to fraction form
   15.84/34.72 = 34.72/x
3. Step 3: Cross multiply
   15.84x = 34.72 × 34.72
4. Step 4: Simplify right side
   15.84x = 1,205.29
5. Step 5: Solve for x
   x = 1,205.29/15.84
6. Step 6: Final answer
   x = 76.10