Finding the Third Proportional to 65,089.50 and 142,059

Step by Step Solution

1. Step 1: Write the proportion equation
   65,089.50 : 142,059 = 142,059 : x
2. Step 2: Convert to fraction form
   65,089.50/142,059 = 142,059/x
3. Step 3: Cross multiply
   65,089.50x = 142,059 × 142,059
4. Step 4: Simplify right side
   65,089.50x = 20,180,759,481
5. Step 5: Solve for x
   x = 20,180,759,481/65,089.50
6. Step 6: Final answer
   x = 310,046.31