Finding the Third Proportional to 864,492 and 1,388,998

Step by Step Solution

1. Step 1: Write the proportion equation
   864,492 : 1,388,998 = 1,388,998 : x
2. Step 2: Convert to fraction form
   864,492/1,388,998 = 1,388,998/x
3. Step 3: Cross multiply
   864,492x = 1,388,998 × 1,388,998
4. Step 4: Simplify right side
   864,492x = 1,929,315,444,004
5. Step 5: Solve for x
   x = 1,929,315,444,004/864,492
6. Step 6: Final answer
   x = 2,231,733.14