Finding the Third Proportional to 86,238 and 182,911.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,238 : 182,911.50 = 182,911.50 : x
2. Step 2: Convert to fraction form
   86,238/182,911.50 = 182,911.50/x
3. Step 3: Cross multiply
   86,238x = 182,911.50 × 182,911.50
4. Step 4: Simplify right side
   86,238x = 33,456,616,832.25
5. Step 5: Solve for x
   x = 33,456,616,832.25/86,238
6. Step 6: Final answer
   x = 387,956.78