Finding the Third Proportional to 26,720 and 55,136

Step by Step Solution

1. Step 1: Write the proportion equation
   26,720 : 55,136 = 55,136 : x
2. Step 2: Convert to fraction form
   26,720/55,136 = 55,136/x
3. Step 3: Cross multiply
   26,720x = 55,136 × 55,136
4. Step 4: Simplify right side
   26,720x = 3,039,978,496
5. Step 5: Solve for x
   x = 3,039,978,496/26,720
6. Step 6: Final answer
   x = 113,771.65