Finding the Third Proportional to 12,942 and 28,380

Step by Step Solution

1. Step 1: Write the proportion equation
   12,942 : 28,380 = 28,380 : x
2. Step 2: Convert to fraction form
   12,942/28,380 = 28,380/x
3. Step 3: Cross multiply
   12,942x = 28,380 × 28,380
4. Step 4: Simplify right side
   12,942x = 805,424,400
5. Step 5: Solve for x
   x = 805,424,400/12,942
6. Step 6: Final answer
   x = 62,233.38