Finding the Third Proportional to 315,132 and 674,562

Step by Step Solution

1. Step 1: Write the proportion equation
   315,132 : 674,562 = 674,562 : x
2. Step 2: Convert to fraction form
   315,132/674,562 = 674,562/x
3. Step 3: Cross multiply
   315,132x = 674,562 × 674,562
4. Step 4: Simplify right side
   315,132x = 455,033,891,844
5. Step 5: Solve for x
   x = 455,033,891,844/315,132
6. Step 6: Final answer
   x = 1,443,946.96