Finding the Third Proportional to 2,193,191 and 4,890,666

Step by Step Solution

1. Step 1: Write the proportion equation
   2,193,191 : 4,890,666 = 4,890,666 : x
2. Step 2: Convert to fraction form
   2,193,191/4,890,666 = 4,890,666/x
3. Step 3: Cross multiply
   2,193,191x = 4,890,666 × 4,890,666
4. Step 4: Simplify right side
   2,193,191x = 23,918,613,923,556
5. Step 5: Solve for x
   x = 23,918,613,923,556/2,193,191
6. Step 6: Final answer
   x = 10,905,850.85