Finding the Third Proportional to 904,990 and 1,787,136

Step by Step Solution

1. Step 1: Write the proportion equation
   904,990 : 1,787,136 = 1,787,136 : x
2. Step 2: Convert to fraction form
   904,990/1,787,136 = 1,787,136/x
3. Step 3: Cross multiply
   904,990x = 1,787,136 × 1,787,136
4. Step 4: Simplify right side
   904,990x = 3,193,855,082,496
5. Step 5: Solve for x
   x = 3,193,855,082,496/904,990
6. Step 6: Final answer
   x = 3,529,160.63