Finding the Third Proportional to 78,792 and 131,304

Step by Step Solution

1. Step 1: Write the proportion equation
   78,792 : 131,304 = 131,304 : x
2. Step 2: Convert to fraction form
   78,792/131,304 = 131,304/x
3. Step 3: Cross multiply
   78,792x = 131,304 × 131,304
4. Step 4: Simplify right side
   78,792x = 17,240,740,416
5. Step 5: Solve for x
   x = 17,240,740,416/78,792
6. Step 6: Final answer
   x = 218,813.34