Finding the Third Proportional to 171,722 and 252,616.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,722 : 252,616.50 = 252,616.50 : x
2. Step 2: Convert to fraction form
   171,722/252,616.50 = 252,616.50/x
3. Step 3: Cross multiply
   171,722x = 252,616.50 × 252,616.50
4. Step 4: Simplify right side
   171,722x = 63,815,096,072.25
5. Step 5: Solve for x
   x = 63,815,096,072.25/171,722
6. Step 6: Final answer
   x = 371,618.64