Finding the Third Proportional to 12,680 and 27,056

Step by Step Solution

1. Step 1: Write the proportion equation
   12,680 : 27,056 = 27,056 : x
2. Step 2: Convert to fraction form
   12,680/27,056 = 27,056/x
3. Step 3: Cross multiply
   12,680x = 27,056 × 27,056
4. Step 4: Simplify right side
   12,680x = 732,027,136
5. Step 5: Solve for x
   x = 732,027,136/12,680
6. Step 6: Final answer
   x = 57,730.85