Finding the Third Proportional to 12,015 and 25,807

Step by Step Solution

1. Step 1: Write the proportion equation
   12,015 : 25,807 = 25,807 : x
2. Step 2: Convert to fraction form
   12,015/25,807 = 25,807/x
3. Step 3: Cross multiply
   12,015x = 25,807 × 25,807
4. Step 4: Simplify right side
   12,015x = 666,001,249
5. Step 5: Solve for x
   x = 666,001,249/12,015
6. Step 6: Final answer
   x = 55,430.82