Finding the Third Proportional to 352.69 and 476.72

Step by Step Solution

1. Step 1: Write the proportion equation
   352.69 : 476.72 = 476.72 : x
2. Step 2: Convert to fraction form
   352.69/476.72 = 476.72/x
3. Step 3: Cross multiply
   352.69x = 476.72 × 476.72
4. Step 4: Simplify right side
   352.69x = 227,260.77
5. Step 5: Solve for x
   x = 227,260.77/352.69
6. Step 6: Final answer
   x = 644.37