Finding the Third Proportional to 196,792 and 276,144

Step by Step Solution

1. Step 1: Write the proportion equation
   196,792 : 276,144 = 276,144 : x
2. Step 2: Convert to fraction form
   196,792/276,144 = 276,144/x
3. Step 3: Cross multiply
   196,792x = 276,144 × 276,144
4. Step 4: Simplify right side
   196,792x = 76,255,508,736
5. Step 5: Solve for x
   x = 76,255,508,736/196,792
6. Step 6: Final answer
   x = 387,492.93