Finding the Third Proportional to 221,412 and 474,408

Step by Step Solution

1. Step 1: Write the proportion equation
   221,412 : 474,408 = 474,408 : x
2. Step 2: Convert to fraction form
   221,412/474,408 = 474,408/x
3. Step 3: Cross multiply
   221,412x = 474,408 × 474,408
4. Step 4: Simplify right side
   221,412x = 225,062,950,464
5. Step 5: Solve for x
   x = 225,062,950,464/221,412
6. Step 6: Final answer
   x = 1,016,489.40