Finding the Third Proportional to 88,789.92 and 188,662.92

Step by Step Solution

1. Step 1: Write the proportion equation
   88,789.92 : 188,662.92 = 188,662.92 : x
2. Step 2: Convert to fraction form
   88,789.92/188,662.92 = 188,662.92/x
3. Step 3: Cross multiply
   88,789.92x = 188,662.92 × 188,662.92
4. Step 4: Simplify right side
   88,789.92x = 35,593,698,090.41
5. Step 5: Solve for x
   x = 35,593,698,090.41/88,789.92
6. Step 6: Final answer
   x = 400,875.43