Finding the Third Proportional to 322,216 and 706,404

Step by Step Solution

1. Step 1: Write the proportion equation
   322,216 : 706,404 = 706,404 : x
2. Step 2: Convert to fraction form
   322,216/706,404 = 706,404/x
3. Step 3: Cross multiply
   322,216x = 706,404 × 706,404
4. Step 4: Simplify right side
   322,216x = 499,006,611,216
5. Step 5: Solve for x
   x = 499,006,611,216/322,216
6. Step 6: Final answer
   x = 1,548,671.11