Finding the Third Proportional to 19,904.25 and 28,292.63

Step by Step Solution

1. Step 1: Write the proportion equation
   19,904.25 : 28,292.63 = 28,292.63 : x
2. Step 2: Convert to fraction form
   19,904.25/28,292.63 = 28,292.63/x
3. Step 3: Cross multiply
   19,904.25x = 28,292.63 × 28,292.63
4. Step 4: Simplify right side
   19,904.25x = 800,472,629.39
5. Step 5: Solve for x
   x = 800,472,629.39/19,904.25
6. Step 6: Final answer
   x = 40,216.17