Finding the Third Proportional to 16,318 and 17,776

Step by Step Solution

1. Step 1: Write the proportion equation
   16,318 : 17,776 = 17,776 : x
2. Step 2: Convert to fraction form
   16,318/17,776 = 17,776/x
3. Step 3: Cross multiply
   16,318x = 17,776 × 17,776
4. Step 4: Simplify right side
   16,318x = 315,986,176
5. Step 5: Solve for x
   x = 315,986,176/16,318
6. Step 6: Final answer
   x = 19,364.27