Finding the Third Proportional to 2,099,140 and 4,347,638

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099,140 : 4,347,638 = 4,347,638 : x
2. Step 2: Convert to fraction form
   2,099,140/4,347,638 = 4,347,638/x
3. Step 3: Cross multiply
   2,099,140x = 4,347,638 × 4,347,638
4. Step 4: Simplify right side
   2,099,140x = 18,901,956,179,044
5. Step 5: Solve for x
   x = 18,901,956,179,044/2,099,140
6. Step 6: Final answer
   x = 9,004,619.12