Finding the Third Proportional to 40,907 and 86,188

Step by Step Solution

1. Step 1: Write the proportion equation
   40,907 : 86,188 = 86,188 : x
2. Step 2: Convert to fraction form
   40,907/86,188 = 86,188/x
3. Step 3: Cross multiply
   40,907x = 86,188 × 86,188
4. Step 4: Simplify right side
   40,907x = 7,428,371,344
5. Step 5: Solve for x
   x = 7,428,371,344/40,907
6. Step 6: Final answer
   x = 181,591.69