Finding the Third Proportional to 28,344 and 42,396

Step by Step Solution

1. Step 1: Write the proportion equation
   28,344 : 42,396 = 42,396 : x
2. Step 2: Convert to fraction form
   28,344/42,396 = 42,396/x
3. Step 3: Cross multiply
   28,344x = 42,396 × 42,396
4. Step 4: Simplify right side
   28,344x = 1,797,420,816
5. Step 5: Solve for x
   x = 1,797,420,816/28,344
6. Step 6: Final answer
   x = 63,414.51