Finding the Third Proportional to 132,588 and 288,496

Step by Step Solution

1. Step 1: Write the proportion equation
   132,588 : 288,496 = 288,496 : x
2. Step 2: Convert to fraction form
   132,588/288,496 = 288,496/x
3. Step 3: Cross multiply
   132,588x = 288,496 × 288,496
4. Step 4: Simplify right side
   132,588x = 83,229,942,016
5. Step 5: Solve for x
   x = 83,229,942,016/132,588
6. Step 6: Final answer
   x = 627,733.60