Finding the Third Proportional to 816,696 and 1,311,144

Step by Step Solution

1. Step 1: Write the proportion equation
   816,696 : 1,311,144 = 1,311,144 : x
2. Step 2: Convert to fraction form
   816,696/1,311,144 = 1,311,144/x
3. Step 3: Cross multiply
   816,696x = 1,311,144 × 1,311,144
4. Step 4: Simplify right side
   816,696x = 1,719,098,588,736
5. Step 5: Solve for x
   x = 1,719,098,588,736/816,696
6. Step 6: Final answer
   x = 2,104,943.07