Finding the Third Proportional to 28,171.69 and 43,872.47

Step by Step Solution

1. Step 1: Write the proportion equation
   28,171.69 : 43,872.47 = 43,872.47 : x
2. Step 2: Convert to fraction form
   28,171.69/43,872.47 = 43,872.47/x
3. Step 3: Cross multiply
   28,171.69x = 43,872.47 × 43,872.47
4. Step 4: Simplify right side
   28,171.69x = 1,924,793,514.22
5. Step 5: Solve for x
   x = 1,924,793,514.22/28,171.69
6. Step 6: Final answer
   x = 68,323.69