Finding the Third Proportional to 86,020 and 126,500

Step by Step Solution

1. Step 1: Write the proportion equation
   86,020 : 126,500 = 126,500 : x
2. Step 2: Convert to fraction form
   86,020/126,500 = 126,500/x
3. Step 3: Cross multiply
   86,020x = 126,500 × 126,500
4. Step 4: Simplify right side
   86,020x = 16,002,250,000
5. Step 5: Solve for x
   x = 16,002,250,000/86,020
6. Step 6: Final answer
   x = 186,029.41