Finding the Third Proportional to 18,573.68 and 28,215.84

Step by Step Solution

1. Step 1: Write the proportion equation
   18,573.68 : 28,215.84 = 28,215.84 : x
2. Step 2: Convert to fraction form
   18,573.68/28,215.84 = 28,215.84/x
3. Step 3: Cross multiply
   18,573.68x = 28,215.84 × 28,215.84
4. Step 4: Simplify right side
   18,573.68x = 796,133,838.52
5. Step 5: Solve for x
   x = 796,133,838.52/18,573.68
6. Step 6: Final answer
   x = 42,863.55