Finding the Third Proportional to 1,553.55 and 3,288.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,553.55 : 3,288.73 = 3,288.73 : x
2. Step 2: Convert to fraction form
   1,553.55/3,288.73 = 3,288.73/x
3. Step 3: Cross multiply
   1,553.55x = 3,288.73 × 3,288.73
4. Step 4: Simplify right side
   1,553.55x = 10,815,722.40
5. Step 5: Solve for x
   x = 10,815,722.40/1,553.55
6. Step 6: Final answer
   x = 6,961.92