Finding the Third Proportional to 9,127.69 and 10,838.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,127.69 : 10,838.81 = 10,838.81 : x
2. Step 2: Convert to fraction form
   9,127.69/10,838.81 = 10,838.81/x
3. Step 3: Cross multiply
   9,127.69x = 10,838.81 × 10,838.81
4. Step 4: Simplify right side
   9,127.69x = 117,479,856.41
5. Step 5: Solve for x
   x = 117,479,856.41/9,127.69
6. Step 6: Final answer
   x = 12,870.71