Finding the Third Proportional to 15.88 and 32.60

Step by Step Solution

1. Step 1: Write the proportion equation
   15.88 : 32.60 = 32.60 : x
2. Step 2: Convert to fraction form
   15.88/32.60 = 32.60/x
3. Step 3: Cross multiply
   15.88x = 32.60 × 32.60
4. Step 4: Simplify right side
   15.88x = 1,062.71
5. Step 5: Solve for x
   x = 1,062.71/15.88
6. Step 6: Final answer
   x = 66.91