Finding the Third Proportional to 245.44 and 554.72

Step by Step Solution

1. Step 1: Write the proportion equation
   245.44 : 554.72 = 554.72 : x
2. Step 2: Convert to fraction form
   245.44/554.72 = 554.72/x
3. Step 3: Cross multiply
   245.44x = 554.72 × 554.72
4. Step 4: Simplify right side
   245.44x = 307,712.89
5. Step 5: Solve for x
   x = 307,712.89/245.44
6. Step 6: Final answer
   x = 1,253.73