Finding the Third Proportional to 1,345,196 and 1,998,631

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345,196 : 1,998,631 = 1,998,631 : x
2. Step 2: Convert to fraction form
   1,345,196/1,998,631 = 1,998,631/x
3. Step 3: Cross multiply
   1,345,196x = 1,998,631 × 1,998,631
4. Step 4: Simplify right side
   1,345,196x = 3,994,525,874,161
5. Step 5: Solve for x
   x = 3,994,525,874,161/1,345,196
6. Step 6: Final answer
   x = 2,969,474.99