Finding the Third Proportional to 131,405 and 187,907

Step by Step Solution

1. Step 1: Write the proportion equation
   131,405 : 187,907 = 187,907 : x
2. Step 2: Convert to fraction form
   131,405/187,907 = 187,907/x
3. Step 3: Cross multiply
   131,405x = 187,907 × 187,907
4. Step 4: Simplify right side
   131,405x = 35,309,040,649
5. Step 5: Solve for x
   x = 35,309,040,649/131,405
6. Step 6: Final answer
   x = 268,703.94