Finding the Third Proportional to 219,208 and 478,996

Step by Step Solution

1. Step 1: Write the proportion equation
   219,208 : 478,996 = 478,996 : x
2. Step 2: Convert to fraction form
   219,208/478,996 = 478,996/x
3. Step 3: Cross multiply
   219,208x = 478,996 × 478,996
4. Step 4: Simplify right side
   219,208x = 229,437,168,016
5. Step 5: Solve for x
   x = 229,437,168,016/219,208
6. Step 6: Final answer
   x = 1,046,664.21