Finding the Third Proportional to 2,128,106 and 4,669,636

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128,106 : 4,669,636 = 4,669,636 : x
2. Step 2: Convert to fraction form
   2,128,106/4,669,636 = 4,669,636/x
3. Step 3: Cross multiply
   2,128,106x = 4,669,636 × 4,669,636
4. Step 4: Simplify right side
   2,128,106x = 21,805,500,372,496
5. Step 5: Solve for x
   x = 21,805,500,372,496/2,128,106
6. Step 6: Final answer
   x = 10,246,435.27