Finding the Third Proportional to 640,932 and 1,005,396

Step by Step Solution

1. Step 1: Write the proportion equation
   640,932 : 1,005,396 = 1,005,396 : x
2. Step 2: Convert to fraction form
   640,932/1,005,396 = 1,005,396/x
3. Step 3: Cross multiply
   640,932x = 1,005,396 × 1,005,396
4. Step 4: Simplify right side
   640,932x = 1,010,821,116,816
5. Step 5: Solve for x
   x = 1,010,821,116,816/640,932
6. Step 6: Final answer
   x = 1,577,111.33