Finding the Third Proportional to 146,394 and 321,300

Step by Step Solution

1. Step 1: Write the proportion equation
   146,394 : 321,300 = 321,300 : x
2. Step 2: Convert to fraction form
   146,394/321,300 = 321,300/x
3. Step 3: Cross multiply
   146,394x = 321,300 × 321,300
4. Step 4: Simplify right side
   146,394x = 103,233,690,000
5. Step 5: Solve for x
   x = 103,233,690,000/146,394
6. Step 6: Final answer
   x = 705,177.06