Finding the Third Proportional to 377,019 and 820,378.50

Step by Step Solution

1. Step 1: Write the proportion equation
   377,019 : 820,378.50 = 820,378.50 : x
2. Step 2: Convert to fraction form
   377,019/820,378.50 = 820,378.50/x
3. Step 3: Cross multiply
   377,019x = 820,378.50 × 820,378.50
4. Step 4: Simplify right side
   377,019x = 673,020,883,262.25
5. Step 5: Solve for x
   x = 673,020,883,262.25/377,019
6. Step 6: Final answer
   x = 1,785,111.32