Finding the Third Proportional to 226,290 and 478,824

Step by Step Solution

1. Step 1: Write the proportion equation
   226,290 : 478,824 = 478,824 : x
2. Step 2: Convert to fraction form
   226,290/478,824 = 478,824/x
3. Step 3: Cross multiply
   226,290x = 478,824 × 478,824
4. Step 4: Simplify right side
   226,290x = 229,272,422,976
5. Step 5: Solve for x
   x = 229,272,422,976/226,290
6. Step 6: Final answer
   x = 1,013,179.65