Finding the Third Proportional to 143,426 and 311,044

Step by Step Solution

1. Step 1: Write the proportion equation
   143,426 : 311,044 = 311,044 : x
2. Step 2: Convert to fraction form
   143,426/311,044 = 311,044/x
3. Step 3: Cross multiply
   143,426x = 311,044 × 311,044
4. Step 4: Simplify right side
   143,426x = 96,748,369,936
5. Step 5: Solve for x
   x = 96,748,369,936/143,426
6. Step 6: Final answer
   x = 674,552.52