Finding the Third Proportional to 381,550.50 and 828,711

Step by Step Solution

1. Step 1: Write the proportion equation
   381,550.50 : 828,711 = 828,711 : x
2. Step 2: Convert to fraction form
   381,550.50/828,711 = 828,711/x
3. Step 3: Cross multiply
   381,550.50x = 828,711 × 828,711
4. Step 4: Simplify right side
   381,550.50x = 686,761,921,521
5. Step 5: Solve for x
   x = 686,761,921,521/381,550.50
6. Step 6: Final answer
   x = 1,799,924.05