Finding the Third Proportional to 18,710.72 and 28,260.28

Step by Step Solution

1. Step 1: Write the proportion equation
   18,710.72 : 28,260.28 = 28,260.28 : x
2. Step 2: Convert to fraction form
   18,710.72/28,260.28 = 28,260.28/x
3. Step 3: Cross multiply
   18,710.72x = 28,260.28 × 28,260.28
4. Step 4: Simplify right side
   18,710.72x = 798,643,496.33
5. Step 5: Solve for x
   x = 798,643,496.33/18,710.72
6. Step 6: Final answer
   x = 42,683.74