Finding the Third Proportional to 35.16 and 67.88

Step by Step Solution

1. Step 1: Write the proportion equation
   35.16 : 67.88 = 67.88 : x
2. Step 2: Convert to fraction form
   35.16/67.88 = 67.88/x
3. Step 3: Cross multiply
   35.16x = 67.88 × 67.88
4. Step 4: Simplify right side
   35.16x = 4,607.02
5. Step 5: Solve for x
   x = 4,607.02/35.16
6. Step 6: Final answer
   x = 131.04