Finding the Third Proportional to 23,160 and 55,980

Step by Step Solution

1. Step 1: Write the proportion equation
   23,160 : 55,980 = 55,980 : x
2. Step 2: Convert to fraction form
   23,160/55,980 = 55,980/x
3. Step 3: Cross multiply
   23,160x = 55,980 × 55,980
4. Step 4: Simplify right side
   23,160x = 3,133,760,400
5. Step 5: Solve for x
   x = 3,133,760,400/23,160
6. Step 6: Final answer
   x = 135,309.17