Finding the Third Proportional to 70.50 and 76.25

Step by Step Solution

1. Step 1: Write the proportion equation
   70.50 : 76.25 = 76.25 : x
2. Step 2: Convert to fraction form
   70.50/76.25 = 76.25/x
3. Step 3: Cross multiply
   70.50x = 76.25 × 76.25
4. Step 4: Simplify right side
   70.50x = 5,814.06
5. Step 5: Solve for x
   x = 5,814.06/70.50
6. Step 6: Final answer
   x = 82.47