Finding the Third Proportional to 68,404 and 146,540

Step by Step Solution

1. Step 1: Write the proportion equation
   68,404 : 146,540 = 146,540 : x
2. Step 2: Convert to fraction form
   68,404/146,540 = 146,540/x
3. Step 3: Cross multiply
   68,404x = 146,540 × 146,540
4. Step 4: Simplify right side
   68,404x = 21,473,971,600
5. Step 5: Solve for x
   x = 21,473,971,600/68,404
6. Step 6: Final answer
   x = 313,928.59