Finding the Third Proportional to 45.75 and 99.42

Step by Step Solution

1. Step 1: Write the proportion equation
   45.75 : 99.42 = 99.42 : x
2. Step 2: Convert to fraction form
   45.75/99.42 = 99.42/x
3. Step 3: Cross multiply
   45.75x = 99.42 × 99.42
4. Step 4: Simplify right side
   45.75x = 9,884.71
5. Step 5: Solve for x
   x = 9,884.71/45.75
6. Step 6: Final answer
   x = 216.06