Finding the Third Proportional to 12,572 and 18,426

Step by Step Solution

1. Step 1: Write the proportion equation
   12,572 : 18,426 = 18,426 : x
2. Step 2: Convert to fraction form
   12,572/18,426 = 18,426/x
3. Step 3: Cross multiply
   12,572x = 18,426 × 18,426
4. Step 4: Simplify right side
   12,572x = 339,517,476
5. Step 5: Solve for x
   x = 339,517,476/12,572
6. Step 6: Final answer
   x = 27,005.84