Finding the Third Proportional to 111,700 and 170,610

Step by Step Solution

1. Step 1: Write the proportion equation
   111,700 : 170,610 = 170,610 : x
2. Step 2: Convert to fraction form
   111,700/170,610 = 170,610/x
3. Step 3: Cross multiply
   111,700x = 170,610 × 170,610
4. Step 4: Simplify right side
   111,700x = 29,107,772,100
5. Step 5: Solve for x
   x = 29,107,772,100/111,700
6. Step 6: Final answer
   x = 260,588.83