Finding the Third Proportional to 131,207.25 and 208,878

Step by Step Solution

1. Step 1: Write the proportion equation
   131,207.25 : 208,878 = 208,878 : x
2. Step 2: Convert to fraction form
   131,207.25/208,878 = 208,878/x
3. Step 3: Cross multiply
   131,207.25x = 208,878 × 208,878
4. Step 4: Simplify right side
   131,207.25x = 43,630,018,884
5. Step 5: Solve for x
   x = 43,630,018,884/131,207.25
6. Step 6: Final answer
   x = 332,527.50