Finding the Third Proportional to 86,405 and 141,091

Step by Step Solution

1. Step 1: Write the proportion equation
   86,405 : 141,091 = 141,091 : x
2. Step 2: Convert to fraction form
   86,405/141,091 = 141,091/x
3. Step 3: Cross multiply
   86,405x = 141,091 × 141,091
4. Step 4: Simplify right side
   86,405x = 19,906,670,281
5. Step 5: Solve for x
   x = 19,906,670,281/86,405
6. Step 6: Final answer
   x = 230,387.94