Finding the Third Proportional to 37,686 and 82,212

Step by Step Solution

1. Step 1: Write the proportion equation
   37,686 : 82,212 = 82,212 : x
2. Step 2: Convert to fraction form
   37,686/82,212 = 82,212/x
3. Step 3: Cross multiply
   37,686x = 82,212 × 82,212
4. Step 4: Simplify right side
   37,686x = 6,758,812,944
5. Step 5: Solve for x
   x = 6,758,812,944/37,686
6. Step 6: Final answer
   x = 179,345.46