Finding the Third Proportional to 29.25 and 42.80

Step by Step Solution

1. Step 1: Write the proportion equation
   29.25 : 42.80 = 42.80 : x
2. Step 2: Convert to fraction form
   29.25/42.80 = 42.80/x
3. Step 3: Cross multiply
   29.25x = 42.80 × 42.80
4. Step 4: Simplify right side
   29.25x = 1,832.19
5. Step 5: Solve for x
   x = 1,832.19/29.25
6. Step 6: Final answer
   x = 62.64