Finding the Third Proportional to 143,839.50 and 225,642

Step by Step Solution

1. Step 1: Write the proportion equation
   143,839.50 : 225,642 = 225,642 : x
2. Step 2: Convert to fraction form
   143,839.50/225,642 = 225,642/x
3. Step 3: Cross multiply
   143,839.50x = 225,642 × 225,642
4. Step 4: Simplify right side
   143,839.50x = 50,914,312,164
5. Step 5: Solve for x
   x = 50,914,312,164/143,839.50
6. Step 6: Final answer
   x = 353,966.14