Finding the Third Proportional to 171,986 and 247,724.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,986 : 247,724.50 = 247,724.50 : x
2. Step 2: Convert to fraction form
   171,986/247,724.50 = 247,724.50/x
3. Step 3: Cross multiply
   171,986x = 247,724.50 × 247,724.50
4. Step 4: Simplify right side
   171,986x = 61,367,427,900.25
5. Step 5: Solve for x
   x = 61,367,427,900.25/171,986
6. Step 6: Final answer
   x = 356,816.41