Finding the Third Proportional to 65,910.50 and 142,189

Step by Step Solution

1. Step 1: Write the proportion equation
   65,910.50 : 142,189 = 142,189 : x
2. Step 2: Convert to fraction form
   65,910.50/142,189 = 142,189/x
3. Step 3: Cross multiply
   65,910.50x = 142,189 × 142,189
4. Step 4: Simplify right side
   65,910.50x = 20,217,711,721
5. Step 5: Solve for x
   x = 20,217,711,721/65,910.50
6. Step 6: Final answer
   x = 306,744.93