Finding the Third Proportional to 78,394.50 and 171,801

Step by Step Solution

1. Step 1: Write the proportion equation
   78,394.50 : 171,801 = 171,801 : x
2. Step 2: Convert to fraction form
   78,394.50/171,801 = 171,801/x
3. Step 3: Cross multiply
   78,394.50x = 171,801 × 171,801
4. Step 4: Simplify right side
   78,394.50x = 29,515,583,601
5. Step 5: Solve for x
   x = 29,515,583,601/78,394.50
6. Step 6: Final answer
   x = 376,500.69