Finding the Third Proportional to 16,040 and 18,776

Step by Step Solution

1. Step 1: Write the proportion equation
   16,040 : 18,776 = 18,776 : x
2. Step 2: Convert to fraction form
   16,040/18,776 = 18,776/x
3. Step 3: Cross multiply
   16,040x = 18,776 × 18,776
4. Step 4: Simplify right side
   16,040x = 352,538,176
5. Step 5: Solve for x
   x = 352,538,176/16,040
6. Step 6: Final answer
   x = 21,978.69