Finding the Third Proportional to 17,990 and 27,236.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,990 : 27,236.50 = 27,236.50 : x
2. Step 2: Convert to fraction form
   17,990/27,236.50 = 27,236.50/x
3. Step 3: Cross multiply
   17,990x = 27,236.50 × 27,236.50
4. Step 4: Simplify right side
   17,990x = 741,826,932.25
5. Step 5: Solve for x
   x = 741,826,932.25/17,990
6. Step 6: Final answer
   x = 41,235.52