Finding the Third Proportional to 111,849.19 and 169,401.38

Step by Step Solution

1. Step 1: Write the proportion equation
   111,849.19 : 169,401.38 = 169,401.38 : x
2. Step 2: Convert to fraction form
   111,849.19/169,401.38 = 169,401.38/x
3. Step 3: Cross multiply
   111,849.19x = 169,401.38 × 169,401.38
4. Step 4: Simplify right side
   111,849.19x = 28,696,825,851.89
5. Step 5: Solve for x
   x = 28,696,825,851.89/111,849.19
6. Step 6: Final answer
   x = 256,567.14