Finding the Third Proportional to 16,991.25 and 39,504.38

Step by Step Solution

1. Step 1: Write the proportion equation
   16,991.25 : 39,504.38 = 39,504.38 : x
2. Step 2: Convert to fraction form
   16,991.25/39,504.38 = 39,504.38/x
3. Step 3: Cross multiply
   16,991.25x = 39,504.38 × 39,504.38
4. Step 4: Simplify right side
   16,991.25x = 1,560,595,644.14
5. Step 5: Solve for x
   x = 1,560,595,644.14/16,991.25
6. Step 6: Final answer
   x = 91,847.02