Finding the Third Proportional to 16,072.17 and 20,827.76

Step by Step Solution

1. Step 1: Write the proportion equation
   16,072.17 : 20,827.76 = 20,827.76 : x
2. Step 2: Convert to fraction form
   16,072.17/20,827.76 = 20,827.76/x
3. Step 3: Cross multiply
   16,072.17x = 20,827.76 × 20,827.76
4. Step 4: Simplify right side
   16,072.17x = 433,795,495.50
5. Step 5: Solve for x
   x = 433,795,495.50/16,072.17
6. Step 6: Final answer
   x = 26,990.47