Finding the Third Proportional to 338,662 and 723,980

Step by Step Solution

1. Step 1: Write the proportion equation
   338,662 : 723,980 = 723,980 : x
2. Step 2: Convert to fraction form
   338,662/723,980 = 723,980/x
3. Step 3: Cross multiply
   338,662x = 723,980 × 723,980
4. Step 4: Simplify right side
   338,662x = 524,147,040,400
5. Step 5: Solve for x
   x = 524,147,040,400/338,662
6. Step 6: Final answer
   x = 1,547,699.60