Finding the Third Proportional to 28,408 and 42,450

Step by Step Solution

1. Step 1: Write the proportion equation
   28,408 : 42,450 = 42,450 : x
2. Step 2: Convert to fraction form
   28,408/42,450 = 42,450/x
3. Step 3: Cross multiply
   28,408x = 42,450 × 42,450
4. Step 4: Simplify right side
   28,408x = 1,802,002,500
5. Step 5: Solve for x
   x = 1,802,002,500/28,408
6. Step 6: Final answer
   x = 63,432.92