Finding the Third Proportional to 80,815.50 and 171,846

Step by Step Solution

1. Step 1: Write the proportion equation
   80,815.50 : 171,846 = 171,846 : x
2. Step 2: Convert to fraction form
   80,815.50/171,846 = 171,846/x
3. Step 3: Cross multiply
   80,815.50x = 171,846 × 171,846
4. Step 4: Simplify right side
   80,815.50x = 29,531,047,716
5. Step 5: Solve for x
   x = 29,531,047,716/80,815.50
6. Step 6: Final answer
   x = 365,413.17