Finding the Third Proportional to 11,331.69 and 15,929.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,331.69 : 15,929.31 = 15,929.31 : x
2. Step 2: Convert to fraction form
   11,331.69/15,929.31 = 15,929.31/x
3. Step 3: Cross multiply
   11,331.69x = 15,929.31 × 15,929.31
4. Step 4: Simplify right side
   11,331.69x = 253,742,996.72
5. Step 5: Solve for x
   x = 253,742,996.72/11,331.69
6. Step 6: Final answer
   x = 22,392.34