Finding the Third Proportional to 151,249.50 and 317,979

Step by Step Solution

1. Step 1: Write the proportion equation
   151,249.50 : 317,979 = 317,979 : x
2. Step 2: Convert to fraction form
   151,249.50/317,979 = 317,979/x
3. Step 3: Cross multiply
   151,249.50x = 317,979 × 317,979
4. Step 4: Simplify right side
   151,249.50x = 101,110,644,441
5. Step 5: Solve for x
   x = 101,110,644,441/151,249.50
6. Step 6: Final answer
   x = 668,502.34