Finding the Third Proportional to 410,848 and 900,128

Step by Step Solution

1. Step 1: Write the proportion equation
   410,848 : 900,128 = 900,128 : x
2. Step 2: Convert to fraction form
   410,848/900,128 = 900,128/x
3. Step 3: Cross multiply
   410,848x = 900,128 × 900,128
4. Step 4: Simplify right side
   410,848x = 810,230,416,384
5. Step 5: Solve for x
   x = 810,230,416,384/410,848
6. Step 6: Final answer
   x = 1,972,092.88