Finding the Third Proportional to 108,800 and 152,960

Step by Step Solution

1. Step 1: Write the proportion equation
   108,800 : 152,960 = 152,960 : x
2. Step 2: Convert to fraction form
   108,800/152,960 = 152,960/x
3. Step 3: Cross multiply
   108,800x = 152,960 × 152,960
4. Step 4: Simplify right side
   108,800x = 23,396,761,600
5. Step 5: Solve for x
   x = 23,396,761,600/108,800
6. Step 6: Final answer
   x = 215,043.76