Finding the Third Proportional to 151,524 and 322,488

Step by Step Solution

1. Step 1: Write the proportion equation
   151,524 : 322,488 = 322,488 : x
2. Step 2: Convert to fraction form
   151,524/322,488 = 322,488/x
3. Step 3: Cross multiply
   151,524x = 322,488 × 322,488
4. Step 4: Simplify right side
   151,524x = 103,998,510,144
5. Step 5: Solve for x
   x = 103,998,510,144/151,524
6. Step 6: Final answer
   x = 686,350.08