Finding the Third Proportional to 143,544 and 335,280

Step by Step Solution

1. Step 1: Write the proportion equation
   143,544 : 335,280 = 335,280 : x
2. Step 2: Convert to fraction form
   143,544/335,280 = 335,280/x
3. Step 3: Cross multiply
   143,544x = 335,280 × 335,280
4. Step 4: Simplify right side
   143,544x = 112,412,678,400
5. Step 5: Solve for x
   x = 112,412,678,400/143,544
6. Step 6: Final answer
   x = 783,123.49