Finding the Third Proportional to 103.22 and 222.47

Step by Step Solution

1. Step 1: Write the proportion equation
   103.22 : 222.47 = 222.47 : x
2. Step 2: Convert to fraction form
   103.22/222.47 = 222.47/x
3. Step 3: Cross multiply
   103.22x = 222.47 × 222.47
4. Step 4: Simplify right side
   103.22x = 49,492.34
5. Step 5: Solve for x
   x = 49,492.34/103.22
6. Step 6: Final answer
   x = 479.49