Finding the Third Proportional to 111,060 and 172,017

Step by Step Solution

1. Step 1: Write the proportion equation
   111,060 : 172,017 = 172,017 : x
2. Step 2: Convert to fraction form
   111,060/172,017 = 172,017/x
3. Step 3: Cross multiply
   111,060x = 172,017 × 172,017
4. Step 4: Simplify right side
   111,060x = 29,589,848,289
5. Step 5: Solve for x
   x = 29,589,848,289/111,060
6. Step 6: Final answer
   x = 266,431.19