Finding the Third Proportional to 855,438 and 1,837,236

Step by Step Solution

1. Step 1: Write the proportion equation
   855,438 : 1,837,236 = 1,837,236 : x
2. Step 2: Convert to fraction form
   855,438/1,837,236 = 1,837,236/x
3. Step 3: Cross multiply
   855,438x = 1,837,236 × 1,837,236
4. Step 4: Simplify right side
   855,438x = 3,375,436,119,696
5. Step 5: Solve for x
   x = 3,375,436,119,696/855,438
6. Step 6: Final answer
   x = 3,945,857.12