Finding the Third Proportional to 18,862.50 and 28,300.50

Step by Step Solution

1. Step 1: Write the proportion equation
   18,862.50 : 28,300.50 = 28,300.50 : x
2. Step 2: Convert to fraction form
   18,862.50/28,300.50 = 28,300.50/x
3. Step 3: Cross multiply
   18,862.50x = 28,300.50 × 28,300.50
4. Step 4: Simplify right side
   18,862.50x = 800,918,300.25
5. Step 5: Solve for x
   x = 800,918,300.25/18,862.50
6. Step 6: Final answer
   x = 42,460.88