Finding the Third Proportional to 111,564 and 170,910

Step by Step Solution

1. Step 1: Write the proportion equation
   111,564 : 170,910 = 170,910 : x
2. Step 2: Convert to fraction form
   111,564/170,910 = 170,910/x
3. Step 3: Cross multiply
   111,564x = 170,910 × 170,910
4. Step 4: Simplify right side
   111,564x = 29,210,228,100
5. Step 5: Solve for x
   x = 29,210,228,100/111,564
6. Step 6: Final answer
   x = 261,824.85