Finding the Third Proportional to 68,296 and 144,384

Step by Step Solution

1. Step 1: Write the proportion equation
   68,296 : 144,384 = 144,384 : x
2. Step 2: Convert to fraction form
   68,296/144,384 = 144,384/x
3. Step 3: Cross multiply
   68,296x = 144,384 × 144,384
4. Step 4: Simplify right side
   68,296x = 20,846,739,456
5. Step 5: Solve for x
   x = 20,846,739,456/68,296
6. Step 6: Final answer
   x = 305,241.00