Finding the Third Proportional to 45.25 and 99.05

Step by Step Solution

1. Step 1: Write the proportion equation
   45.25 : 99.05 = 99.05 : x
2. Step 2: Convert to fraction form
   45.25/99.05 = 99.05/x
3. Step 3: Cross multiply
   45.25x = 99.05 × 99.05
4. Step 4: Simplify right side
   45.25x = 9,809.92
5. Step 5: Solve for x
   x = 9,809.92/45.25
6. Step 6: Final answer
   x = 216.79