Finding the Third Proportional to 864,668 and 1,381,326

Step by Step Solution

1. Step 1: Write the proportion equation
   864,668 : 1,381,326 = 1,381,326 : x
2. Step 2: Convert to fraction form
   864,668/1,381,326 = 1,381,326/x
3. Step 3: Cross multiply
   864,668x = 1,381,326 × 1,381,326
4. Step 4: Simplify right side
   864,668x = 1,908,061,518,276
5. Step 5: Solve for x
   x = 1,908,061,518,276/864,668
6. Step 6: Final answer
   x = 2,206,698.43