Finding the Third Proportional to 329,452 and 721,942

Step by Step Solution

1. Step 1: Write the proportion equation
   329,452 : 721,942 = 721,942 : x
2. Step 2: Convert to fraction form
   329,452/721,942 = 721,942/x
3. Step 3: Cross multiply
   329,452x = 721,942 × 721,942
4. Step 4: Simplify right side
   329,452x = 521,200,251,364
5. Step 5: Solve for x
   x = 521,200,251,364/329,452
6. Step 6: Final answer
   x = 1,582,021.82