Finding the Third Proportional to 67,328 and 141,424

Step by Step Solution

1. Step 1: Write the proportion equation
   67,328 : 141,424 = 141,424 : x
2. Step 2: Convert to fraction form
   67,328/141,424 = 141,424/x
3. Step 3: Cross multiply
   67,328x = 141,424 × 141,424
4. Step 4: Simplify right side
   67,328x = 20,000,747,776
5. Step 5: Solve for x
   x = 20,000,747,776/67,328
6. Step 6: Final answer
   x = 297,064.34