Finding the Third Proportional to 649,019.50 and 1,420,388

Step by Step Solution

1. Step 1: Write the proportion equation
   649,019.50 : 1,420,388 = 1,420,388 : x
2. Step 2: Convert to fraction form
   649,019.50/1,420,388 = 1,420,388/x
3. Step 3: Cross multiply
   649,019.50x = 1,420,388 × 1,420,388
4. Step 4: Simplify right side
   649,019.50x = 2,017,502,070,544
5. Step 5: Solve for x
   x = 2,017,502,070,544/649,019.50
6. Step 6: Final answer
   x = 3,108,538.45