Finding the Third Proportional to 28,264 and 42,988

Step by Step Solution

1. Step 1: Write the proportion equation
   28,264 : 42,988 = 42,988 : x
2. Step 2: Convert to fraction form
   28,264/42,988 = 42,988/x
3. Step 3: Cross multiply
   28,264x = 42,988 × 42,988
4. Step 4: Simplify right side
   28,264x = 1,847,968,144
5. Step 5: Solve for x
   x = 1,847,968,144/28,264
6. Step 6: Final answer
   x = 65,382.40