Finding the Third Proportional to 150,976.50 and 308,505

Step by Step Solution

1. Step 1: Write the proportion equation
   150,976.50 : 308,505 = 308,505 : x
2. Step 2: Convert to fraction form
   150,976.50/308,505 = 308,505/x
3. Step 3: Cross multiply
   150,976.50x = 308,505 × 308,505
4. Step 4: Simplify right side
   150,976.50x = 95,175,335,025
5. Step 5: Solve for x
   x = 95,175,335,025/150,976.50
6. Step 6: Final answer
   x = 630,398.34