Finding the Third Proportional to 13,077.19 and 16,790.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,077.19 : 16,790.81 = 16,790.81 : x
2. Step 2: Convert to fraction form
   13,077.19/16,790.81 = 16,790.81/x
3. Step 3: Cross multiply
   13,077.19x = 16,790.81 × 16,790.81
4. Step 4: Simplify right side
   13,077.19x = 281,931,384.41
5. Step 5: Solve for x
   x = 281,931,384.41/13,077.19
6. Step 6: Final answer
   x = 21,559.02