Finding the Third Proportional to 8,434.88 and 20,145.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,434.88 : 20,145.38 = 20,145.38 : x
2. Step 2: Convert to fraction form
   8,434.88/20,145.38 = 20,145.38/x
3. Step 3: Cross multiply
   8,434.88x = 20,145.38 × 20,145.38
4. Step 4: Simplify right side
   8,434.88x = 405,836,133.89
5. Step 5: Solve for x
   x = 405,836,133.89/8,434.88
6. Step 6: Final answer
   x = 48,114.07