Finding the Third Proportional to 28,508 and 42,888

Step by Step Solution

1. Step 1: Write the proportion equation
   28,508 : 42,888 = 42,888 : x
2. Step 2: Convert to fraction form
   28,508/42,888 = 42,888/x
3. Step 3: Cross multiply
   28,508x = 42,888 × 42,888
4. Step 4: Simplify right side
   28,508x = 1,839,380,544
5. Step 5: Solve for x
   x = 1,839,380,544/28,508
6. Step 6: Final answer
   x = 64,521.56