Finding the Third Proportional to 12,906 and 28,270.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,906 : 28,270.69 = 28,270.69 : x
2. Step 2: Convert to fraction form
   12,906/28,270.69 = 28,270.69/x
3. Step 3: Cross multiply
   12,906x = 28,270.69 × 28,270.69
4. Step 4: Simplify right side
   12,906x = 799,231,771.72
5. Step 5: Solve for x
   x = 799,231,771.72/12,906
6. Step 6: Final answer
   x = 61,927.15