Finding the Third Proportional to 143,682 and 314,116

Step by Step Solution

1. Step 1: Write the proportion equation
   143,682 : 314,116 = 314,116 : x
2. Step 2: Convert to fraction form
   143,682/314,116 = 314,116/x
3. Step 3: Cross multiply
   143,682x = 314,116 × 314,116
4. Step 4: Simplify right side
   143,682x = 98,668,861,456
5. Step 5: Solve for x
   x = 98,668,861,456/143,682
6. Step 6: Final answer
   x = 686,716.93