Finding the Third Proportional to 115,399.69 and 174,691.69

Step by Step Solution

1. Step 1: Write the proportion equation
   115,399.69 : 174,691.69 = 174,691.69 : x
2. Step 2: Convert to fraction form
   115,399.69/174,691.69 = 174,691.69/x
3. Step 3: Cross multiply
   115,399.69x = 174,691.69 × 174,691.69
4. Step 4: Simplify right side
   115,399.69x = 30,517,185,681.60
5. Step 5: Solve for x
   x = 30,517,185,681.60/115,399.69
6. Step 6: Final answer
   x = 264,447.73