Finding the Third Proportional to 132,992 and 288,180

Step by Step Solution

1. Step 1: Write the proportion equation
   132,992 : 288,180 = 288,180 : x
2. Step 2: Convert to fraction form
   132,992/288,180 = 288,180/x
3. Step 3: Cross multiply
   132,992x = 288,180 × 288,180
4. Step 4: Simplify right side
   132,992x = 83,047,712,400
5. Step 5: Solve for x
   x = 83,047,712,400/132,992
6. Step 6: Final answer
   x = 624,456.45