Finding the Third Proportional to 474.56 and 528.56

Step by Step Solution

1. Step 1: Write the proportion equation
   474.56 : 528.56 = 528.56 : x
2. Step 2: Convert to fraction form
   474.56/528.56 = 528.56/x
3. Step 3: Cross multiply
   474.56x = 528.56 × 528.56
4. Step 4: Simplify right side
   474.56x = 279,378.32
5. Step 5: Solve for x
   x = 279,378.32/474.56
6. Step 6: Final answer
   x = 588.71