Finding the Third Proportional to 39,382.45 and 86,419.41

Step by Step Solution

1. Step 1: Write the proportion equation
   39,382.45 : 86,419.41 = 86,419.41 : x
2. Step 2: Convert to fraction form
   39,382.45/86,419.41 = 86,419.41/x
3. Step 3: Cross multiply
   39,382.45x = 86,419.41 × 86,419.41
4. Step 4: Simplify right side
   39,382.45x = 7,468,313,776.60
5. Step 5: Solve for x
   x = 7,468,313,776.60/39,382.45
6. Step 6: Final answer
   x = 189,635.57