Finding the Third Proportional to 171,168.81 and 369,401.69

Step by Step Solution

1. Step 1: Write the proportion equation
   171,168.81 : 369,401.69 = 369,401.69 : x
2. Step 2: Convert to fraction form
   171,168.81/369,401.69 = 369,401.69/x
3. Step 3: Cross multiply
   171,168.81x = 369,401.69 × 369,401.69
4. Step 4: Simplify right side
   171,168.81x = 136,457,606,727.85
5. Step 5: Solve for x
   x = 136,457,606,727.85/171,168.81
6. Step 6: Final answer
   x = 797,210.69