Finding the Third Proportional to 9,904.50 and 20,112.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,904.50 : 20,112.75 = 20,112.75 : x
2. Step 2: Convert to fraction form
   9,904.50/20,112.75 = 20,112.75/x
3. Step 3: Cross multiply
   9,904.50x = 20,112.75 × 20,112.75
4. Step 4: Simplify right side
   9,904.50x = 404,522,712.56
5. Step 5: Solve for x
   x = 404,522,712.56/9,904.50
6. Step 6: Final answer
   x = 40,842.32