Finding the Third Proportional to 90,654 and 140,718

Step by Step Solution

1. Step 1: Write the proportion equation
   90,654 : 140,718 = 140,718 : x
2. Step 2: Convert to fraction form
   90,654/140,718 = 140,718/x
3. Step 3: Cross multiply
   90,654x = 140,718 × 140,718
4. Step 4: Simplify right side
   90,654x = 19,801,555,524
5. Step 5: Solve for x
   x = 19,801,555,524/90,654
6. Step 6: Final answer
   x = 218,430.03