Finding the Third Proportional to 10,660 and 23,420

Step by Step Solution

1. Step 1: Write the proportion equation
   10,660 : 23,420 = 23,420 : x
2. Step 2: Convert to fraction form
   10,660/23,420 = 23,420/x
3. Step 3: Cross multiply
   10,660x = 23,420 × 23,420
4. Step 4: Simplify right side
   10,660x = 548,496,400
5. Step 5: Solve for x
   x = 548,496,400/10,660
6. Step 6: Final answer
   x = 51,453.70