Finding the Third Proportional to 37.50 and 55.15

Step by Step Solution

1. Step 1: Write the proportion equation
   37.50 : 55.15 = 55.15 : x
2. Step 2: Convert to fraction form
   37.50/55.15 = 55.15/x
3. Step 3: Cross multiply
   37.50x = 55.15 × 55.15
4. Step 4: Simplify right side
   37.50x = 3,041.35
5. Step 5: Solve for x
   x = 3,041.35/37.50
6. Step 6: Final answer
   x = 81.10