Finding the Third Proportional to 140,418 and 223,287.75

Step by Step Solution

1. Step 1: Write the proportion equation
   140,418 : 223,287.75 = 223,287.75 : x
2. Step 2: Convert to fraction form
   140,418/223,287.75 = 223,287.75/x
3. Step 3: Cross multiply
   140,418x = 223,287.75 × 223,287.75
4. Step 4: Simplify right side
   140,418x = 49,857,419,300.06
5. Step 5: Solve for x
   x = 49,857,419,300.06/140,418
6. Step 6: Final answer
   x = 355,064.30