Finding the Third Proportional to 28,456 and 40,988

Step by Step Solution

1. Step 1: Write the proportion equation
   28,456 : 40,988 = 40,988 : x
2. Step 2: Convert to fraction form
   28,456/40,988 = 40,988/x
3. Step 3: Cross multiply
   28,456x = 40,988 × 40,988
4. Step 4: Simplify right side
   28,456x = 1,680,016,144
5. Step 5: Solve for x
   x = 1,680,016,144/28,456
6. Step 6: Final answer
   x = 59,039.08