Finding the Third Proportional to 221,696 and 474,892

Step by Step Solution

1. Step 1: Write the proportion equation
   221,696 : 474,892 = 474,892 : x
2. Step 2: Convert to fraction form
   221,696/474,892 = 474,892/x
3. Step 3: Cross multiply
   221,696x = 474,892 × 474,892
4. Step 4: Simplify right side
   221,696x = 225,522,411,664
5. Step 5: Solve for x
   x = 225,522,411,664/221,696
6. Step 6: Final answer
   x = 1,017,259.72