Finding the Third Proportional to 69.50 and 101.69

Step by Step Solution

1. Step 1: Write the proportion equation
   69.50 : 101.69 = 101.69 : x
2. Step 2: Convert to fraction form
   69.50/101.69 = 101.69/x
3. Step 3: Cross multiply
   69.50x = 101.69 × 101.69
4. Step 4: Simplify right side
   69.50x = 10,340.35
5. Step 5: Solve for x
   x = 10,340.35/69.50
6. Step 6: Final answer
   x = 148.78