Finding the Third Proportional to 12,681 and 25,740

Step by Step Solution

1. Step 1: Write the proportion equation
   12,681 : 25,740 = 25,740 : x
2. Step 2: Convert to fraction form
   12,681/25,740 = 25,740/x
3. Step 3: Cross multiply
   12,681x = 25,740 × 25,740
4. Step 4: Simplify right side
   12,681x = 662,547,600
5. Step 5: Solve for x
   x = 662,547,600/12,681
6. Step 6: Final answer
   x = 52,247.27