Finding the Third Proportional to 15,134 and 17,912

Step by Step Solution

1. Step 1: Write the proportion equation
   15,134 : 17,912 = 17,912 : x
2. Step 2: Convert to fraction form
   15,134/17,912 = 17,912/x
3. Step 3: Cross multiply
   15,134x = 17,912 × 17,912
4. Step 4: Simplify right side
   15,134x = 320,839,744
5. Step 5: Solve for x
   x = 320,839,744/15,134
6. Step 6: Final answer
   x = 21,199.93