Finding the Third Proportional to 131,386.50 and 200,360

Step by Step Solution

1. Step 1: Write the proportion equation
   131,386.50 : 200,360 = 200,360 : x
2. Step 2: Convert to fraction form
   131,386.50/200,360 = 200,360/x
3. Step 3: Cross multiply
   131,386.50x = 200,360 × 200,360
4. Step 4: Simplify right side
   131,386.50x = 40,144,129,600
5. Step 5: Solve for x
   x = 40,144,129,600/131,386.50
6. Step 6: Final answer
   x = 305,542.27