Finding the Third Proportional to 37,287 and 54,170

Step by Step Solution

1. Step 1: Write the proportion equation
   37,287 : 54,170 = 54,170 : x
2. Step 2: Convert to fraction form
   37,287/54,170 = 54,170/x
3. Step 3: Cross multiply
   37,287x = 54,170 × 54,170
4. Step 4: Simplify right side
   37,287x = 2,934,388,900
5. Step 5: Solve for x
   x = 2,934,388,900/37,287
6. Step 6: Final answer
   x = 78,697.37