Finding the Third Proportional to 143,676 and 307,976

Step by Step Solution

1. Step 1: Write the proportion equation
   143,676 : 307,976 = 307,976 : x
2. Step 2: Convert to fraction form
   143,676/307,976 = 307,976/x
3. Step 3: Cross multiply
   143,676x = 307,976 × 307,976
4. Step 4: Simplify right side
   143,676x = 94,849,216,576
5. Step 5: Solve for x
   x = 94,849,216,576/143,676
6. Step 6: Final answer
   x = 660,160.48