Finding the Third Proportional to 378,327 and 774,150

Step by Step Solution

1. Step 1: Write the proportion equation
   378,327 : 774,150 = 774,150 : x
2. Step 2: Convert to fraction form
   378,327/774,150 = 774,150/x
3. Step 3: Cross multiply
   378,327x = 774,150 × 774,150
4. Step 4: Simplify right side
   378,327x = 599,308,222,500
5. Step 5: Solve for x
   x = 599,308,222,500/378,327
6. Step 6: Final answer
   x = 1,584,101.11