Finding the Third Proportional to 221,492 and 474,454

Step by Step Solution

1. Step 1: Write the proportion equation
   221,492 : 474,454 = 474,454 : x
2. Step 2: Convert to fraction form
   221,492/474,454 = 474,454/x
3. Step 3: Cross multiply
   221,492x = 474,454 × 474,454
4. Step 4: Simplify right side
   221,492x = 225,106,598,116
5. Step 5: Solve for x
   x = 225,106,598,116/221,492
6. Step 6: Final answer
   x = 1,016,319.32