Finding the Third Proportional to 28,512 and 42,768

Step by Step Solution

1. Step 1: Write the proportion equation
   28,512 : 42,768 = 42,768 : x
2. Step 2: Convert to fraction form
   28,512/42,768 = 42,768/x
3. Step 3: Cross multiply
   28,512x = 42,768 × 42,768
4. Step 4: Simplify right side
   28,512x = 1,829,101,824
5. Step 5: Solve for x
   x = 1,829,101,824/28,512
6. Step 6: Final answer
   x = 64,152