Finding the Third Proportional to 143,424 and 303,264

Step by Step Solution

1. Step 1: Write the proportion equation
   143,424 : 303,264 = 303,264 : x
2. Step 2: Convert to fraction form
   143,424/303,264 = 303,264/x
3. Step 3: Cross multiply
   143,424x = 303,264 × 303,264
4. Step 4: Simplify right side
   143,424x = 91,969,053,696
5. Step 5: Solve for x
   x = 91,969,053,696/143,424
6. Step 6: Final answer
   x = 641,238.94