Finding the Third Proportional to 170,689.50 and 245,871

Step by Step Solution

1. Step 1: Write the proportion equation
   170,689.50 : 245,871 = 245,871 : x
2. Step 2: Convert to fraction form
   170,689.50/245,871 = 245,871/x
3. Step 3: Cross multiply
   170,689.50x = 245,871 × 245,871
4. Step 4: Simplify right side
   170,689.50x = 60,452,548,641
5. Step 5: Solve for x
   x = 60,452,548,641/170,689.50
6. Step 6: Final answer
   x = 354,166.77