Finding the Third Proportional to 873,678 and 1,918,662

Step by Step Solution

1. Step 1: Write the proportion equation
   873,678 : 1,918,662 = 1,918,662 : x
2. Step 2: Convert to fraction form
   873,678/1,918,662 = 1,918,662/x
3. Step 3: Cross multiply
   873,678x = 1,918,662 × 1,918,662
4. Step 4: Simplify right side
   873,678x = 3,681,263,870,244
5. Step 5: Solve for x
   x = 3,681,263,870,244/873,678
6. Step 6: Final answer
   x = 4,213,524.74