Finding the Third Proportional to 220,168 and 480,368

Step by Step Solution

1. Step 1: Write the proportion equation
   220,168 : 480,368 = 480,368 : x
2. Step 2: Convert to fraction form
   220,168/480,368 = 480,368/x
3. Step 3: Cross multiply
   220,168x = 480,368 × 480,368
4. Step 4: Simplify right side
   220,168x = 230,753,415,424
5. Step 5: Solve for x
   x = 230,753,415,424/220,168
6. Step 6: Final answer
   x = 1,048,078.81