Finding the Third Proportional to 18,412.31 and 28,317.09

Step by Step Solution

1. Step 1: Write the proportion equation
   18,412.31 : 28,317.09 = 28,317.09 : x
2. Step 2: Convert to fraction form
   18,412.31/28,317.09 = 28,317.09/x
3. Step 3: Cross multiply
   18,412.31x = 28,317.09 × 28,317.09
4. Step 4: Simplify right side
   18,412.31x = 801,857,798.45
5. Step 5: Solve for x
   x = 801,857,798.45/18,412.31
6. Step 6: Final answer
   x = 43,550.09