Finding the Third Proportional to 86,404 and 141,090

Step by Step Solution

1. Step 1: Write the proportion equation
   86,404 : 141,090 = 141,090 : x
2. Step 2: Convert to fraction form
   86,404/141,090 = 141,090/x
3. Step 3: Cross multiply
   86,404x = 141,090 × 141,090
4. Step 4: Simplify right side
   86,404x = 19,906,388,100
5. Step 5: Solve for x
   x = 19,906,388,100/86,404
6. Step 6: Final answer
   x = 230,387.34