Finding the Third Proportional to 40,231.69 and 84,609.56

Step by Step Solution

1. Step 1: Write the proportion equation
   40,231.69 : 84,609.56 = 84,609.56 : x
2. Step 2: Convert to fraction form
   40,231.69/84,609.56 = 84,609.56/x
3. Step 3: Cross multiply
   40,231.69x = 84,609.56 × 84,609.56
4. Step 4: Simplify right side
   40,231.69x = 7,158,778,066.44
5. Step 5: Solve for x
   x = 7,158,778,066.44/40,231.69
6. Step 6: Final answer
   x = 177,938.80