Finding the Third Proportional to 228,942 and 478,782

Step by Step Solution

1. Step 1: Write the proportion equation
   228,942 : 478,782 = 478,782 : x
2. Step 2: Convert to fraction form
   228,942/478,782 = 478,782/x
3. Step 3: Cross multiply
   228,942x = 478,782 × 478,782
4. Step 4: Simplify right side
   228,942x = 229,232,203,524
5. Step 5: Solve for x
   x = 229,232,203,524/228,942
6. Step 6: Final answer
   x = 1,001,267.59