Finding the Third Proportional to 111,262 and 172,173

Step by Step Solution

1. Step 1: Write the proportion equation
   111,262 : 172,173 = 172,173 : x
2. Step 2: Convert to fraction form
   111,262/172,173 = 172,173/x
3. Step 3: Cross multiply
   111,262x = 172,173 × 172,173
4. Step 4: Simplify right side
   111,262x = 29,643,541,929
5. Step 5: Solve for x
   x = 29,643,541,929/111,262
6. Step 6: Final answer
   x = 266,430.07