Finding the Third Proportional to 902,938 and 2,131,390

Step by Step Solution

1. Step 1: Write the proportion equation
   902,938 : 2,131,390 = 2,131,390 : x
2. Step 2: Convert to fraction form
   902,938/2,131,390 = 2,131,390/x
3. Step 3: Cross multiply
   902,938x = 2,131,390 × 2,131,390
4. Step 4: Simplify right side
   902,938x = 4,542,823,332,100
5. Step 5: Solve for x
   x = 4,542,823,332,100/902,938
6. Step 6: Final answer
   x = 5,031,157.55