Finding the Third Proportional to 2,193,206 and 4,890,686

Step by Step Solution

1. Step 1: Write the proportion equation
   2,193,206 : 4,890,686 = 4,890,686 : x
2. Step 2: Convert to fraction form
   2,193,206/4,890,686 = 4,890,686/x
3. Step 3: Cross multiply
   2,193,206x = 4,890,686 × 4,890,686
4. Step 4: Simplify right side
   2,193,206x = 23,918,809,550,596
5. Step 5: Solve for x
   x = 23,918,809,550,596/2,193,206
6. Step 6: Final answer
   x = 10,905,865.45