Finding the Third Proportional to 146,722 and 321,498

Step by Step Solution

1. Step 1: Write the proportion equation
   146,722 : 321,498 = 321,498 : x
2. Step 2: Convert to fraction form
   146,722/321,498 = 321,498/x
3. Step 3: Cross multiply
   146,722x = 321,498 × 321,498
4. Step 4: Simplify right side
   146,722x = 103,360,964,004
5. Step 5: Solve for x
   x = 103,360,964,004/146,722
6. Step 6: Final answer
   x = 704,468.07