Finding the Third Proportional to 131,940 and 268,488

Step by Step Solution

1. Step 1: Write the proportion equation
   131,940 : 268,488 = 268,488 : x
2. Step 2: Convert to fraction form
   131,940/268,488 = 268,488/x
3. Step 3: Cross multiply
   131,940x = 268,488 × 268,488
4. Step 4: Simplify right side
   131,940x = 72,085,806,144
5. Step 5: Solve for x
   x = 72,085,806,144/131,940
6. Step 6: Final answer
   x = 546,352.93