Finding the Third Proportional to 18,643.50 and 28,530.56

Step by Step Solution

1. Step 1: Write the proportion equation
   18,643.50 : 28,530.56 = 28,530.56 : x
2. Step 2: Convert to fraction form
   18,643.50/28,530.56 = 28,530.56/x
3. Step 3: Cross multiply
   18,643.50x = 28,530.56 × 28,530.56
4. Step 4: Simplify right side
   18,643.50x = 813,992,996.57
5. Step 5: Solve for x
   x = 813,992,996.57/18,643.50
6. Step 6: Final answer
   x = 43,660.95