Finding the Third Proportional to 131,200.50 and 208,869

Step by Step Solution

1. Step 1: Write the proportion equation
   131,200.50 : 208,869 = 208,869 : x
2. Step 2: Convert to fraction form
   131,200.50/208,869 = 208,869/x
3. Step 3: Cross multiply
   131,200.50x = 208,869 × 208,869
4. Step 4: Simplify right side
   131,200.50x = 43,626,259,161
5. Step 5: Solve for x
   x = 43,626,259,161/131,200.50
6. Step 6: Final answer
   x = 332,515.95