Finding the Third Proportional to 88,686 and 205,099.88

Step by Step Solution

1. Step 1: Write the proportion equation
   88,686 : 205,099.88 = 205,099.88 : x
2. Step 2: Convert to fraction form
   88,686/205,099.88 = 205,099.88/x
3. Step 3: Cross multiply
   88,686x = 205,099.88 × 205,099.88
4. Step 4: Simplify right side
   88,686x = 42,065,958,725.02
5. Step 5: Solve for x
   x = 42,065,958,725.02/88,686
6. Step 6: Final answer
   x = 474,324.68