Finding the Third Proportional to 40,792 and 86,485

Step by Step Solution

1. Step 1: Write the proportion equation
   40,792 : 86,485 = 86,485 : x
2. Step 2: Convert to fraction form
   40,792/86,485 = 86,485/x
3. Step 3: Cross multiply
   40,792x = 86,485 × 86,485
4. Step 4: Simplify right side
   40,792x = 7,479,655,225
5. Step 5: Solve for x
   x = 7,479,655,225/40,792
6. Step 6: Final answer
   x = 183,360.84