Finding the Third Proportional to 49,408 and 67,200

Step by Step Solution

1. Step 1: Write the proportion equation
   49,408 : 67,200 = 67,200 : x
2. Step 2: Convert to fraction form
   49,408/67,200 = 67,200/x
3. Step 3: Cross multiply
   49,408x = 67,200 × 67,200
4. Step 4: Simplify right side
   49,408x = 4,515,840,000
5. Step 5: Solve for x
   x = 4,515,840,000/49,408
6. Step 6: Final answer
   x = 91,398.96