Finding the Third Proportional to 12,003 and 26,172

Step by Step Solution

1. Step 1: Write the proportion equation
   12,003 : 26,172 = 26,172 : x
2. Step 2: Convert to fraction form
   12,003/26,172 = 26,172/x
3. Step 3: Cross multiply
   12,003x = 26,172 × 26,172
4. Step 4: Simplify right side
   12,003x = 684,973,584
5. Step 5: Solve for x
   x = 684,973,584/12,003
6. Step 6: Final answer
   x = 57,066.87