Finding the Third Proportional to 2,554.17 and 5,454.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,554.17 : 5,454.70 = 5,454.70 : x
2. Step 2: Convert to fraction form
   2,554.17/5,454.70 = 5,454.70/x
3. Step 3: Cross multiply
   2,554.17x = 5,454.70 × 5,454.70
4. Step 4: Simplify right side
   2,554.17x = 29,753,786.18
5. Step 5: Solve for x
   x = 29,753,786.18/2,554.17
6. Step 6: Final answer
   x = 11,649.09