Finding the Third Proportional to 866,446 and 1,339,007

Step by Step Solution

1. Step 1: Write the proportion equation
   866,446 : 1,339,007 = 1,339,007 : x
2. Step 2: Convert to fraction form
   866,446/1,339,007 = 1,339,007/x
3. Step 3: Cross multiply
   866,446x = 1,339,007 × 1,339,007
4. Step 4: Simplify right side
   866,446x = 1,792,939,746,049
5. Step 5: Solve for x
   x = 1,792,939,746,049/866,446
6. Step 6: Final answer
   x = 2,069,303.51