Finding the Third Proportional to 21,170 and 45,256

Step by Step Solution

1. Step 1: Write the proportion equation
   21,170 : 45,256 = 45,256 : x
2. Step 2: Convert to fraction form
   21,170/45,256 = 45,256/x
3. Step 3: Cross multiply
   21,170x = 45,256 × 45,256
4. Step 4: Simplify right side
   21,170x = 2,048,105,536
5. Step 5: Solve for x
   x = 2,048,105,536/21,170
6. Step 6: Final answer
   x = 96,745.66