Finding the Third Proportional to 285,124 and 443,562

Step by Step Solution

1. Step 1: Write the proportion equation
   285,124 : 443,562 = 443,562 : x
2. Step 2: Convert to fraction form
   285,124/443,562 = 443,562/x
3. Step 3: Cross multiply
   285,124x = 443,562 × 443,562
4. Step 4: Simplify right side
   285,124x = 196,747,247,844
5. Step 5: Solve for x
   x = 196,747,247,844/285,124
6. Step 6: Final answer
   x = 690,040.99