Finding the Third Proportional to 900,890 and 1,958,596

Step by Step Solution

1. Step 1: Write the proportion equation
   900,890 : 1,958,596 = 1,958,596 : x
2. Step 2: Convert to fraction form
   900,890/1,958,596 = 1,958,596/x
3. Step 3: Cross multiply
   900,890x = 1,958,596 × 1,958,596
4. Step 4: Simplify right side
   900,890x = 3,836,098,291,216
5. Step 5: Solve for x
   x = 3,836,098,291,216/900,890
6. Step 6: Final answer
   x = 4,258,120.63