Finding the Third Proportional to 42,602 and 67,413

Step by Step Solution

1. Step 1: Write the proportion equation
   42,602 : 67,413 = 67,413 : x
2. Step 2: Convert to fraction form
   42,602/67,413 = 67,413/x
3. Step 3: Cross multiply
   42,602x = 67,413 × 67,413
4. Step 4: Simplify right side
   42,602x = 4,544,512,569
5. Step 5: Solve for x
   x = 4,544,512,569/42,602
6. Step 6: Final answer
   x = 106,673.69