Finding the Third Proportional to 222.50 and 350.75

Step by Step Solution

1. Step 1: Write the proportion equation
   222.50 : 350.75 = 350.75 : x
2. Step 2: Convert to fraction form
   222.50/350.75 = 350.75/x
3. Step 3: Cross multiply
   222.50x = 350.75 × 350.75
4. Step 4: Simplify right side
   222.50x = 123,025.56
5. Step 5: Solve for x
   x = 123,025.56/222.50
6. Step 6: Final answer
   x = 552.92