Finding the Third Proportional to 17,310 and 19,086

Step by Step Solution

1. Step 1: Write the proportion equation
   17,310 : 19,086 = 19,086 : x
2. Step 2: Convert to fraction form
   17,310/19,086 = 19,086/x
3. Step 3: Cross multiply
   17,310x = 19,086 × 19,086
4. Step 4: Simplify right side
   17,310x = 364,275,396
5. Step 5: Solve for x
   x = 364,275,396/17,310
6. Step 6: Final answer
   x = 21,044.22