Finding the Third Proportional to 8,263.69 and 12,827.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,263.69 : 12,827.81 = 12,827.81 : x
2. Step 2: Convert to fraction form
   8,263.69/12,827.81 = 12,827.81/x
3. Step 3: Cross multiply
   8,263.69x = 12,827.81 × 12,827.81
4. Step 4: Simplify right side
   8,263.69x = 164,552,773.54
5. Step 5: Solve for x
   x = 164,552,773.54/8,263.69
6. Step 6: Final answer
   x = 19,912.75