Finding the Third Proportional to 669,423 and 1,019,838

Step by Step Solution

1. Step 1: Write the proportion equation
   669,423 : 1,019,838 = 1,019,838 : x
2. Step 2: Convert to fraction form
   669,423/1,019,838 = 1,019,838/x
3. Step 3: Cross multiply
   669,423x = 1,019,838 × 1,019,838
4. Step 4: Simplify right side
   669,423x = 1,040,069,546,244
5. Step 5: Solve for x
   x = 1,040,069,546,244/669,423
6. Step 6: Final answer
   x = 1,553,680.63