Finding the Third Proportional to 19,147.50 and 28,606.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,147.50 : 28,606.50 = 28,606.50 : x
2. Step 2: Convert to fraction form
   19,147.50/28,606.50 = 28,606.50/x
3. Step 3: Cross multiply
   19,147.50x = 28,606.50 × 28,606.50
4. Step 4: Simplify right side
   19,147.50x = 818,331,842.25
5. Step 5: Solve for x
   x = 818,331,842.25/19,147.50
6. Step 6: Final answer
   x = 42,738.31