Finding the Third Proportional to 87,659.25 and 186,240

Step by Step Solution

1. Step 1: Write the proportion equation
   87,659.25 : 186,240 = 186,240 : x
2. Step 2: Convert to fraction form
   87,659.25/186,240 = 186,240/x
3. Step 3: Cross multiply
   87,659.25x = 186,240 × 186,240
4. Step 4: Simplify right side
   87,659.25x = 34,685,337,600
5. Step 5: Solve for x
   x = 34,685,337,600/87,659.25
6. Step 6: Final answer
   x = 395,683.71