Finding the Third Proportional to 2,554.88 and 5,387.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,554.88 : 5,387.06 = 5,387.06 : x
2. Step 2: Convert to fraction form
   2,554.88/5,387.06 = 5,387.06/x
3. Step 3: Cross multiply
   2,554.88x = 5,387.06 × 5,387.06
4. Step 4: Simplify right side
   2,554.88x = 29,020,442.38
5. Step 5: Solve for x
   x = 29,020,442.38/2,554.88
6. Step 6: Final answer
   x = 11,358.85