Finding the Third Proportional to 45.15 and 106.43

Step by Step Solution

1. Step 1: Write the proportion equation
   45.15 : 106.43 = 106.43 : x
2. Step 2: Convert to fraction form
   45.15/106.43 = 106.43/x
3. Step 3: Cross multiply
   45.15x = 106.43 × 106.43
4. Step 4: Simplify right side
   45.15x = 11,327.59
5. Step 5: Solve for x
   x = 11,327.59/45.15
6. Step 6: Final answer
   x = 250.90