Finding the Third Proportional to 584,406 and 1,431,435

Step by Step Solution

1. Step 1: Write the proportion equation
   584,406 : 1,431,435 = 1,431,435 : x
2. Step 2: Convert to fraction form
   584,406/1,431,435 = 1,431,435/x
3. Step 3: Cross multiply
   584,406x = 1,431,435 × 1,431,435
4. Step 4: Simplify right side
   584,406x = 2,049,006,159,225
5. Step 5: Solve for x
   x = 2,049,006,159,225/584,406
6. Step 6: Final answer
   x = 3,506,134.71