Finding the Third Proportional to 36,162 and 87,111

Step by Step Solution

1. Step 1: Write the proportion equation
   36,162 : 87,111 = 87,111 : x
2. Step 2: Convert to fraction form
   36,162/87,111 = 87,111/x
3. Step 3: Cross multiply
   36,162x = 87,111 × 87,111
4. Step 4: Simplify right side
   36,162x = 7,588,326,321
5. Step 5: Solve for x
   x = 7,588,326,321/36,162
6. Step 6: Final answer
   x = 209,842.55