Finding the Third Proportional to 263,898 and 622,353.38

Step by Step Solution

1. Step 1: Write the proportion equation
   263,898 : 622,353.38 = 622,353.38 : x
2. Step 2: Convert to fraction form
   263,898/622,353.38 = 622,353.38/x
3. Step 3: Cross multiply
   263,898x = 622,353.38 × 622,353.38
4. Step 4: Simplify right side
   263,898x = 387,323,723,373.89
5. Step 5: Solve for x
   x = 387,323,723,373.89/263,898
6. Step 6: Final answer
   x = 1,467,702.38