Finding the Third Proportional to 15.77 and 33.22

Step by Step Solution

1. Step 1: Write the proportion equation
   15.77 : 33.22 = 33.22 : x
2. Step 2: Convert to fraction form
   15.77/33.22 = 33.22/x
3. Step 3: Cross multiply
   15.77x = 33.22 × 33.22
4. Step 4: Simplify right side
   15.77x = 1,103.49
5. Step 5: Solve for x
   x = 1,103.49/15.77
6. Step 6: Final answer
   x = 69.99