Finding the Third Proportional to 640,937 and 1,005,404

Step by Step Solution

1. Step 1: Write the proportion equation
   640,937 : 1,005,404 = 1,005,404 : x
2. Step 2: Convert to fraction form
   640,937/1,005,404 = 1,005,404/x
3. Step 3: Cross multiply
   640,937x = 1,005,404 × 1,005,404
4. Step 4: Simplify right side
   640,937x = 1,010,837,203,216
5. Step 5: Solve for x
   x = 1,010,837,203,216/640,937
6. Step 6: Final answer
   x = 1,577,124.12