Finding the Third Proportional to 131,703 and 209,218.50

Step by Step Solution

1. Step 1: Write the proportion equation
   131,703 : 209,218.50 = 209,218.50 : x
2. Step 2: Convert to fraction form
   131,703/209,218.50 = 209,218.50/x
3. Step 3: Cross multiply
   131,703x = 209,218.50 × 209,218.50
4. Step 4: Simplify right side
   131,703x = 43,772,380,742.25
5. Step 5: Solve for x
   x = 43,772,380,742.25/131,703
6. Step 6: Final answer
   x = 332,356.75