Finding the Third Proportional to 978,896 and 1,378,528

Step by Step Solution

1. Step 1: Write the proportion equation
   978,896 : 1,378,528 = 1,378,528 : x
2. Step 2: Convert to fraction form
   978,896/1,378,528 = 1,378,528/x
3. Step 3: Cross multiply
   978,896x = 1,378,528 × 1,378,528
4. Step 4: Simplify right side
   978,896x = 1,900,339,446,784
5. Step 5: Solve for x
   x = 1,900,339,446,784/978,896
6. Step 6: Final answer
   x = 1,941,308.83