Finding the Third Proportional to 12,186 and 28,602

Step by Step Solution

1. Step 1: Write the proportion equation
   12,186 : 28,602 = 28,602 : x
2. Step 2: Convert to fraction form
   12,186/28,602 = 28,602/x
3. Step 3: Cross multiply
   12,186x = 28,602 × 28,602
4. Step 4: Simplify right side
   12,186x = 818,074,404
5. Step 5: Solve for x
   x = 818,074,404/12,186
6. Step 6: Final answer
   x = 67,132.32