Finding the Third Proportional to 12,820 and 14,060

Step by Step Solution

1. Step 1: Write the proportion equation
   12,820 : 14,060 = 14,060 : x
2. Step 2: Convert to fraction form
   12,820/14,060 = 14,060/x
3. Step 3: Cross multiply
   12,820x = 14,060 × 14,060
4. Step 4: Simplify right side
   12,820x = 197,683,600
5. Step 5: Solve for x
   x = 197,683,600/12,820
6. Step 6: Final answer
   x = 15,419.94