Finding the Third Proportional to 12,086 and 15,924

Step by Step Solution

1. Step 1: Write the proportion equation
   12,086 : 15,924 = 15,924 : x
2. Step 2: Convert to fraction form
   12,086/15,924 = 15,924/x
3. Step 3: Cross multiply
   12,086x = 15,924 × 15,924
4. Step 4: Simplify right side
   12,086x = 253,573,776
5. Step 5: Solve for x
   x = 253,573,776/12,086
6. Step 6: Final answer
   x = 20,980.79