Finding the Third Proportional to 307,222 and 635,758

Step by Step Solution

1. Step 1: Write the proportion equation
   307,222 : 635,758 = 635,758 : x
2. Step 2: Convert to fraction form
   307,222/635,758 = 635,758/x
3. Step 3: Cross multiply
   307,222x = 635,758 × 635,758
4. Step 4: Simplify right side
   307,222x = 404,188,234,564
5. Step 5: Solve for x
   x = 404,188,234,564/307,222
6. Step 6: Final answer
   x = 1,315,622.69