Finding the Third Proportional to 18,508.50 and 28,417.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,508.50 : 28,417.50 = 28,417.50 : x
2. Step 2: Convert to fraction form
   18,508.50/28,417.50 = 28,417.50/x
3. Step 3: Cross multiply
   18,508.50x = 28,417.50 × 28,417.50
4. Step 4: Simplify right side
   18,508.50x = 807,554,306.25
5. Step 5: Solve for x
   x = 807,554,306.25/18,508.50
6. Step 6: Final answer
   x = 43,631.54