Finding the Third Proportional to 221,330 and 474,216

Step by Step Solution

1. Step 1: Write the proportion equation
   221,330 : 474,216 = 474,216 : x
2. Step 2: Convert to fraction form
   221,330/474,216 = 474,216/x
3. Step 3: Cross multiply
   221,330x = 474,216 × 474,216
4. Step 4: Simplify right side
   221,330x = 224,880,814,656
5. Step 5: Solve for x
   x = 224,880,814,656/221,330
6. Step 6: Final answer
   x = 1,016,043.08