Finding the Third Proportional to 69,306 and 111,609

Step by Step Solution

1. Step 1: Write the proportion equation
   69,306 : 111,609 = 111,609 : x
2. Step 2: Convert to fraction form
   69,306/111,609 = 111,609/x
3. Step 3: Cross multiply
   69,306x = 111,609 × 111,609
4. Step 4: Simplify right side
   69,306x = 12,456,568,881
5. Step 5: Solve for x
   x = 12,456,568,881/69,306
6. Step 6: Final answer
   x = 179,732.91