Finding the Third Proportional to 131,636 and 204,200

Step by Step Solution

1. Step 1: Write the proportion equation
   131,636 : 204,200 = 204,200 : x
2. Step 2: Convert to fraction form
   131,636/204,200 = 204,200/x
3. Step 3: Cross multiply
   131,636x = 204,200 × 204,200
4. Step 4: Simplify right side
   131,636x = 41,697,640,000
5. Step 5: Solve for x
   x = 41,697,640,000/131,636
6. Step 6: Final answer
   x = 316,764.71