Finding the Third Proportional to 8,820.38 and 13,511.63

Step by Step Solution

1. Step 1: Write the proportion equation
   8,820.38 : 13,511.63 = 13,511.63 : x
2. Step 2: Convert to fraction form
   8,820.38/13,511.63 = 13,511.63/x
3. Step 3: Cross multiply
   8,820.38x = 13,511.63 × 13,511.63
4. Step 4: Simplify right side
   8,820.38x = 182,564,010.14
5. Step 5: Solve for x
   x = 182,564,010.14/8,820.38
6. Step 6: Final answer
   x = 20,697.99