Finding the Third Proportional to 221,408 and 474,310

Step by Step Solution

1. Step 1: Write the proportion equation
   221,408 : 474,310 = 474,310 : x
2. Step 2: Convert to fraction form
   221,408/474,310 = 474,310/x
3. Step 3: Cross multiply
   221,408x = 474,310 × 474,310
4. Step 4: Simplify right side
   221,408x = 224,969,976,100
5. Step 5: Solve for x
   x = 224,969,976,100/221,408
6. Step 6: Final answer
   x = 1,016,087.84