Finding the Third Proportional to 2,355 and 5,072.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,355 : 5,072.25 = 5,072.25 : x
2. Step 2: Convert to fraction form
   2,355/5,072.25 = 5,072.25/x
3. Step 3: Cross multiply
   2,355x = 5,072.25 × 5,072.25
4. Step 4: Simplify right side
   2,355x = 25,727,720.06
5. Step 5: Solve for x
   x = 25,727,720.06/2,355
6. Step 6: Final answer
   x = 10,924.72