Finding the Third Proportional to 649,338 and 1,423,208

Step by Step Solution

1. Step 1: Write the proportion equation
   649,338 : 1,423,208 = 1,423,208 : x
2. Step 2: Convert to fraction form
   649,338/1,423,208 = 1,423,208/x
3. Step 3: Cross multiply
   649,338x = 1,423,208 × 1,423,208
4. Step 4: Simplify right side
   649,338x = 2,025,521,011,264
5. Step 5: Solve for x
   x = 2,025,521,011,264/649,338
6. Step 6: Final answer
   x = 3,119,363.12