Finding the Third Proportional to 3,978,452 and 8,585,896

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978,452 : 8,585,896 = 8,585,896 : x
2. Step 2: Convert to fraction form
   3,978,452/8,585,896 = 8,585,896/x
3. Step 3: Cross multiply
   3,978,452x = 8,585,896 × 8,585,896
4. Step 4: Simplify right side
   3,978,452x = 73,717,610,122,816
5. Step 5: Solve for x
   x = 73,717,610,122,816/3,978,452
6. Step 6: Final answer
   x = 18,529,219.44