Finding the Third Proportional to 903,413 and 1,964,290

Step by Step Solution

1. Step 1: Write the proportion equation
   903,413 : 1,964,290 = 1,964,290 : x
2. Step 2: Convert to fraction form
   903,413/1,964,290 = 1,964,290/x
3. Step 3: Cross multiply
   903,413x = 1,964,290 × 1,964,290
4. Step 4: Simplify right side
   903,413x = 3,858,435,204,100
5. Step 5: Solve for x
   x = 3,858,435,204,100/903,413
6. Step 6: Final answer
   x = 4,270,953.82