Finding the Third Proportional to 12,689 and 28,098

Step by Step Solution

1. Step 1: Write the proportion equation
   12,689 : 28,098 = 28,098 : x
2. Step 2: Convert to fraction form
   12,689/28,098 = 28,098/x
3. Step 3: Cross multiply
   12,689x = 28,098 × 28,098
4. Step 4: Simplify right side
   12,689x = 789,497,604
5. Step 5: Solve for x
   x = 789,497,604/12,689
6. Step 6: Final answer
   x = 62,219.06