Finding the Third Proportional to 40,216.50 and 54,189

Step by Step Solution

1. Step 1: Write the proportion equation
   40,216.50 : 54,189 = 54,189 : x
2. Step 2: Convert to fraction form
   40,216.50/54,189 = 54,189/x
3. Step 3: Cross multiply
   40,216.50x = 54,189 × 54,189
4. Step 4: Simplify right side
   40,216.50x = 2,936,447,721
5. Step 5: Solve for x
   x = 2,936,447,721/40,216.50
6. Step 6: Final answer
   x = 73,015.99