Finding the Third Proportional to 1,638,528 and 3,355,788

Step by Step Solution

1. Step 1: Write the proportion equation
   1,638,528 : 3,355,788 = 3,355,788 : x
2. Step 2: Convert to fraction form
   1,638,528/3,355,788 = 3,355,788/x
3. Step 3: Cross multiply
   1,638,528x = 3,355,788 × 3,355,788
4. Step 4: Simplify right side
   1,638,528x = 11,261,313,100,944
5. Step 5: Solve for x
   x = 11,261,313,100,944/1,638,528
6. Step 6: Final answer
   x = 6,872,823.11