Finding the Third Proportional to 12,377.81 and 16,816.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,377.81 : 16,816.78 = 16,816.78 : x
2. Step 2: Convert to fraction form
   12,377.81/16,816.78 = 16,816.78/x
3. Step 3: Cross multiply
   12,377.81x = 16,816.78 × 16,816.78
4. Step 4: Simplify right side
   12,377.81x = 282,804,131.61
5. Step 5: Solve for x
   x = 282,804,131.61/12,377.81
6. Step 6: Final answer
   x = 22,847.67