Finding the Third Proportional to 381,974 and 809,482.50

Step by Step Solution

1. Step 1: Write the proportion equation
   381,974 : 809,482.50 = 809,482.50 : x
2. Step 2: Convert to fraction form
   381,974/809,482.50 = 809,482.50/x
3. Step 3: Cross multiply
   381,974x = 809,482.50 × 809,482.50
4. Step 4: Simplify right side
   381,974x = 655,261,917,806.25
5. Step 5: Solve for x
   x = 655,261,917,806.25/381,974
6. Step 6: Final answer
   x = 1,715,462.09