Finding the Third Proportional to 369,458.50 and 799,638

Step by Step Solution

1. Step 1: Write the proportion equation
   369,458.50 : 799,638 = 799,638 : x
2. Step 2: Convert to fraction form
   369,458.50/799,638 = 799,638/x
3. Step 3: Cross multiply
   369,458.50x = 799,638 × 799,638
4. Step 4: Simplify right side
   369,458.50x = 639,420,931,044
5. Step 5: Solve for x
   x = 639,420,931,044/369,458.50
6. Step 6: Final answer
   x = 1,730,697.58