Finding the Third Proportional to 12,689 and 19,034

Step by Step Solution

1. Step 1: Write the proportion equation
   12,689 : 19,034 = 19,034 : x
2. Step 2: Convert to fraction form
   12,689/19,034 = 19,034/x
3. Step 3: Cross multiply
   12,689x = 19,034 × 19,034
4. Step 4: Simplify right side
   12,689x = 362,293,156
5. Step 5: Solve for x
   x = 362,293,156/12,689
6. Step 6: Final answer
   x = 28,551.75