Finding the Third Proportional to 31,794 and 67,809

Step by Step Solution

1. Step 1: Write the proportion equation
   31,794 : 67,809 = 67,809 : x
2. Step 2: Convert to fraction form
   31,794/67,809 = 67,809/x
3. Step 3: Cross multiply
   31,794x = 67,809 × 67,809
4. Step 4: Simplify right side
   31,794x = 4,598,060,481
5. Step 5: Solve for x
   x = 4,598,060,481/31,794
6. Step 6: Final answer
   x = 144,620.38