Finding the Third Proportional to 19,858.50 and 28,230.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,858.50 : 28,230.75 = 28,230.75 : x
2. Step 2: Convert to fraction form
   19,858.50/28,230.75 = 28,230.75/x
3. Step 3: Cross multiply
   19,858.50x = 28,230.75 × 28,230.75
4. Step 4: Simplify right side
   19,858.50x = 796,975,245.56
5. Step 5: Solve for x
   x = 796,975,245.56/19,858.50
6. Step 6: Final answer
   x = 40,132.70