Finding the Third Proportional to 39,236.91 and 85,809.38

Step by Step Solution

1. Step 1: Write the proportion equation
   39,236.91 : 85,809.38 = 85,809.38 : x
2. Step 2: Convert to fraction form
   39,236.91/85,809.38 = 85,809.38/x
3. Step 3: Cross multiply
   39,236.91x = 85,809.38 × 85,809.38
4. Step 4: Simplify right side
   39,236.91x = 7,363,248,837.89
5. Step 5: Solve for x
   x = 7,363,248,837.89/39,236.91
6. Step 6: Final answer
   x = 187,661.30