Finding the Third Proportional to 36,900 and 55,388

Step by Step Solution

1. Step 1: Write the proportion equation
   36,900 : 55,388 = 55,388 : x
2. Step 2: Convert to fraction form
   36,900/55,388 = 55,388/x
3. Step 3: Cross multiply
   36,900x = 55,388 × 55,388
4. Step 4: Simplify right side
   36,900x = 3,067,830,544
5. Step 5: Solve for x
   x = 3,067,830,544/36,900
6. Step 6: Final answer
   x = 83,139.04