Finding the Third Proportional to 65,878.50 and 143,682

Step by Step Solution

1. Step 1: Write the proportion equation
   65,878.50 : 143,682 = 143,682 : x
2. Step 2: Convert to fraction form
   65,878.50/143,682 = 143,682/x
3. Step 3: Cross multiply
   65,878.50x = 143,682 × 143,682
4. Step 4: Simplify right side
   65,878.50x = 20,644,517,124
5. Step 5: Solve for x
   x = 20,644,517,124/65,878.50
6. Step 6: Final answer
   x = 313,372.60