Finding the Third Proportional to 16,666 and 18,106

Step by Step Solution

1. Step 1: Write the proportion equation
   16,666 : 18,106 = 18,106 : x
2. Step 2: Convert to fraction form
   16,666/18,106 = 18,106/x
3. Step 3: Cross multiply
   16,666x = 18,106 × 18,106
4. Step 4: Simplify right side
   16,666x = 327,827,236
5. Step 5: Solve for x
   x = 327,827,236/16,666
6. Step 6: Final answer
   x = 19,670.42