Finding the Third Proportional to 17,900.37 and 39,243.55

Step by Step Solution

1. Step 1: Write the proportion equation
   17,900.37 : 39,243.55 = 39,243.55 : x
2. Step 2: Convert to fraction form
   17,900.37/39,243.55 = 39,243.55/x
3. Step 3: Cross multiply
   17,900.37x = 39,243.55 × 39,243.55
4. Step 4: Simplify right side
   17,900.37x = 1,540,056,277.92
5. Step 5: Solve for x
   x = 1,540,056,277.92/17,900.37
6. Step 6: Final answer
   x = 86,034.90