Finding the Third Proportional to 5,515.50 and 10,754.25

Step by Step Solution

1. Step 1: Write the proportion equation
   5,515.50 : 10,754.25 = 10,754.25 : x
2. Step 2: Convert to fraction form
   5,515.50/10,754.25 = 10,754.25/x
3. Step 3: Cross multiply
   5,515.50x = 10,754.25 × 10,754.25
4. Step 4: Simplify right side
   5,515.50x = 115,653,893.06
5. Step 5: Solve for x
   x = 115,653,893.06/5,515.50
6. Step 6: Final answer
   x = 20,968.89