Finding the Third Proportional to 543,578 and 1,279,007

Step by Step Solution

1. Step 1: Write the proportion equation
   543,578 : 1,279,007 = 1,279,007 : x
2. Step 2: Convert to fraction form
   543,578/1,279,007 = 1,279,007/x
3. Step 3: Cross multiply
   543,578x = 1,279,007 × 1,279,007
4. Step 4: Simplify right side
   543,578x = 1,635,858,906,049
5. Step 5: Solve for x
   x = 1,635,858,906,049/543,578
6. Step 6: Final answer
   x = 3,009,428.10