Finding the Third Proportional to 657,288 and 1,039,914

Step by Step Solution

1. Step 1: Write the proportion equation
   657,288 : 1,039,914 = 1,039,914 : x
2. Step 2: Convert to fraction form
   657,288/1,039,914 = 1,039,914/x
3. Step 3: Cross multiply
   657,288x = 1,039,914 × 1,039,914
4. Step 4: Simplify right side
   657,288x = 1,081,421,127,396
5. Step 5: Solve for x
   x = 1,081,421,127,396/657,288
6. Step 6: Final answer
   x = 1,645,277.45