Finding the Third Proportional to 65.94 and 117.78

Step by Step Solution

1. Step 1: Write the proportion equation
   65.94 : 117.78 = 117.78 : x
2. Step 2: Convert to fraction form
   65.94/117.78 = 117.78/x
3. Step 3: Cross multiply
   65.94x = 117.78 × 117.78
4. Step 4: Simplify right side
   65.94x = 13,872.42
5. Step 5: Solve for x
   x = 13,872.42/65.94
6. Step 6: Final answer
   x = 210.39