Finding the Third Proportional to 80,811 and 169,996.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,811 : 169,996.50 = 169,996.50 : x
2. Step 2: Convert to fraction form
   80,811/169,996.50 = 169,996.50/x
3. Step 3: Cross multiply
   80,811x = 169,996.50 × 169,996.50
4. Step 4: Simplify right side
   80,811x = 28,898,810,012.25
5. Step 5: Solve for x
   x = 28,898,810,012.25/80,811
6. Step 6: Final answer
   x = 357,609.86