Finding the Third Proportional to 223,424 and 478,828

Step by Step Solution

1. Step 1: Write the proportion equation
   223,424 : 478,828 = 478,828 : x
2. Step 2: Convert to fraction form
   223,424/478,828 = 478,828/x
3. Step 3: Cross multiply
   223,424x = 478,828 × 478,828
4. Step 4: Simplify right side
   223,424x = 229,276,253,584
5. Step 5: Solve for x
   x = 229,276,253,584/223,424
6. Step 6: Final answer
   x = 1,026,193.49