Finding the Third Proportional to 36,810 and 55,218

Step by Step Solution

1. Step 1: Write the proportion equation
   36,810 : 55,218 = 55,218 : x
2. Step 2: Convert to fraction form
   36,810/55,218 = 55,218/x
3. Step 3: Cross multiply
   36,810x = 55,218 × 55,218
4. Step 4: Simplify right side
   36,810x = 3,049,027,524
5. Step 5: Solve for x
   x = 3,049,027,524/36,810
6. Step 6: Final answer
   x = 82,831.50