Finding the Third Proportional to 143,476.31 and 314,229.38

Step by Step Solution

1. Step 1: Write the proportion equation
   143,476.31 : 314,229.38 = 314,229.38 : x
2. Step 2: Convert to fraction form
   143,476.31/314,229.38 = 314,229.38/x
3. Step 3: Cross multiply
   143,476.31x = 314,229.38 × 314,229.38
4. Step 4: Simplify right side
   143,476.31x = 98,740,100,112.89
5. Step 5: Solve for x
   x = 98,740,100,112.89/143,476.31
6. Step 6: Final answer
   x = 688,197.92