Finding the Third Proportional to 16,254 and 21,786

Step by Step Solution

1. Step 1: Write the proportion equation
   16,254 : 21,786 = 21,786 : x
2. Step 2: Convert to fraction form
   16,254/21,786 = 21,786/x
3. Step 3: Cross multiply
   16,254x = 21,786 × 21,786
4. Step 4: Simplify right side
   16,254x = 474,629,796
5. Step 5: Solve for x
   x = 474,629,796/16,254
6. Step 6: Final answer
   x = 29,200.80