Finding the Third Proportional to 640,935 and 1,005,401

Step by Step Solution

1. Step 1: Write the proportion equation
   640,935 : 1,005,401 = 1,005,401 : x
2. Step 2: Convert to fraction form
   640,935/1,005,401 = 1,005,401/x
3. Step 3: Cross multiply
   640,935x = 1,005,401 × 1,005,401
4. Step 4: Simplify right side
   640,935x = 1,010,831,170,801
5. Step 5: Solve for x
   x = 1,010,831,170,801/640,935
6. Step 6: Final answer
   x = 1,577,119.63