Finding the Third Proportional to 18,443.32 and 39,573.88

Step by Step Solution

1. Step 1: Write the proportion equation
   18,443.32 : 39,573.88 = 39,573.88 : x
2. Step 2: Convert to fraction form
   18,443.32/39,573.88 = 39,573.88/x
3. Step 3: Cross multiply
   18,443.32x = 39,573.88 × 39,573.88
4. Step 4: Simplify right side
   18,443.32x = 1,566,091,891.69
5. Step 5: Solve for x
   x = 1,566,091,891.69/18,443.32
6. Step 6: Final answer
   x = 84,913.77