Finding the Third Proportional to 115.03 and 222.56

Step by Step Solution

1. Step 1: Write the proportion equation
   115.03 : 222.56 = 222.56 : x
2. Step 2: Convert to fraction form
   115.03/222.56 = 222.56/x
3. Step 3: Cross multiply
   115.03x = 222.56 × 222.56
4. Step 4: Simplify right side
   115.03x = 49,534.07
5. Step 5: Solve for x
   x = 49,534.07/115.03
6. Step 6: Final answer
   x = 430.61