Finding the Third Proportional to 665,948 and 1,438,304

Step by Step Solution

1. Step 1: Write the proportion equation
   665,948 : 1,438,304 = 1,438,304 : x
2. Step 2: Convert to fraction form
   665,948/1,438,304 = 1,438,304/x
3. Step 3: Cross multiply
   665,948x = 1,438,304 × 1,438,304
4. Step 4: Simplify right side
   665,948x = 2,068,718,396,416
5. Step 5: Solve for x
   x = 2,068,718,396,416/665,948
6. Step 6: Final answer
   x = 3,106,426.32