Finding the Third Proportional to 12,742 and 18,152

Step by Step Solution

1. Step 1: Write the proportion equation
   12,742 : 18,152 = 18,152 : x
2. Step 2: Convert to fraction form
   12,742/18,152 = 18,152/x
3. Step 3: Cross multiply
   12,742x = 18,152 × 18,152
4. Step 4: Simplify right side
   12,742x = 329,495,104
5. Step 5: Solve for x
   x = 329,495,104/12,742
6. Step 6: Final answer
   x = 25,858.98