Finding the Third Proportional to 450,662 and 978,354

Step by Step Solution

1. Step 1: Write the proportion equation
   450,662 : 978,354 = 978,354 : x
2. Step 2: Convert to fraction form
   450,662/978,354 = 978,354/x
3. Step 3: Cross multiply
   450,662x = 978,354 × 978,354
4. Step 4: Simplify right side
   450,662x = 957,176,549,316
5. Step 5: Solve for x
   x = 957,176,549,316/450,662
6. Step 6: Final answer
   x = 2,123,934.45