Finding the Third Proportional to 42,336 and 86,850

Step by Step Solution

1. Step 1: Write the proportion equation
   42,336 : 86,850 = 86,850 : x
2. Step 2: Convert to fraction form
   42,336/86,850 = 86,850/x
3. Step 3: Cross multiply
   42,336x = 86,850 × 86,850
4. Step 4: Simplify right side
   42,336x = 7,542,922,500
5. Step 5: Solve for x
   x = 7,542,922,500/42,336
6. Step 6: Final answer
   x = 178,168.05