Finding the Third Proportional to 3,549.56 and 5,490.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,549.56 : 5,490.56 = 5,490.56 : x
2. Step 2: Convert to fraction form
   3,549.56/5,490.56 = 5,490.56/x
3. Step 3: Cross multiply
   3,549.56x = 5,490.56 × 5,490.56
4. Step 4: Simplify right side
   3,549.56x = 30,146,276.57
5. Step 5: Solve for x
   x = 30,146,276.57/3,549.56
6. Step 6: Final answer
   x = 8,492.96