Finding the Third Proportional to 12,807 and 28,103

Step by Step Solution

1. Step 1: Write the proportion equation
   12,807 : 28,103 = 28,103 : x
2. Step 2: Convert to fraction form
   12,807/28,103 = 28,103/x
3. Step 3: Cross multiply
   12,807x = 28,103 × 28,103
4. Step 4: Simplify right side
   12,807x = 789,778,609
5. Step 5: Solve for x
   x = 789,778,609/12,807
6. Step 6: Final answer
   x = 61,667.73