Finding the Third Proportional to 40,394.50 and 86,786.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,394.50 : 86,786.50 = 86,786.50 : x
2. Step 2: Convert to fraction form
   40,394.50/86,786.50 = 86,786.50/x
3. Step 3: Cross multiply
   40,394.50x = 86,786.50 × 86,786.50
4. Step 4: Simplify right side
   40,394.50x = 7,531,896,582.25
5. Step 5: Solve for x
   x = 7,531,896,582.25/40,394.50
6. Step 6: Final answer
   x = 186,458.47