Finding the Third Proportional to 669,397.50 and 1,019,799

Step by Step Solution

1. Step 1: Write the proportion equation
   669,397.50 : 1,019,799 = 1,019,799 : x
2. Step 2: Convert to fraction form
   669,397.50/1,019,799 = 1,019,799/x
3. Step 3: Cross multiply
   669,397.50x = 1,019,799 × 1,019,799
4. Step 4: Simplify right side
   669,397.50x = 1,039,990,000,401
5. Step 5: Solve for x
   x = 1,039,990,000,401/669,397.50
6. Step 6: Final answer
   x = 1,553,620.98