Finding the Third Proportional to 4,581,378 and 9,047,112

Step by Step Solution

1. Step 1: Write the proportion equation
   4,581,378 : 9,047,112 = 9,047,112 : x
2. Step 2: Convert to fraction form
   4,581,378/9,047,112 = 9,047,112/x
3. Step 3: Cross multiply
   4,581,378x = 9,047,112 × 9,047,112
4. Step 4: Simplify right side
   4,581,378x = 81,850,235,540,544
5. Step 5: Solve for x
   x = 81,850,235,540,544/4,581,378
6. Step 6: Final answer
   x = 17,865,855.11