Finding the Third Proportional to 12,942 and 28,800

Step by Step Solution

1. Step 1: Write the proportion equation
   12,942 : 28,800 = 28,800 : x
2. Step 2: Convert to fraction form
   12,942/28,800 = 28,800/x
3. Step 3: Cross multiply
   12,942x = 28,800 × 28,800
4. Step 4: Simplify right side
   12,942x = 829,440,000
5. Step 5: Solve for x
   x = 829,440,000/12,942
6. Step 6: Final answer
   x = 64,089.01