Finding the Third Proportional to 2,193,213 and 4,890,722

Step by Step Solution

1. Step 1: Write the proportion equation
   2,193,213 : 4,890,722 = 4,890,722 : x
2. Step 2: Convert to fraction form
   2,193,213/4,890,722 = 4,890,722/x
3. Step 3: Cross multiply
   2,193,213x = 4,890,722 × 4,890,722
4. Step 4: Simplify right side
   2,193,213x = 23,919,161,681,284
5. Step 5: Solve for x
   x = 23,919,161,681,284/2,193,213
6. Step 6: Final answer
   x = 10,905,991.20