Finding the Third Proportional to 1,404.84 and 2,181.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.84 : 2,181.09 = 2,181.09 : x
2. Step 2: Convert to fraction form
   1,404.84/2,181.09 = 2,181.09/x
3. Step 3: Cross multiply
   1,404.84x = 2,181.09 × 2,181.09
4. Step 4: Simplify right side
   1,404.84x = 4,757,169.95
5. Step 5: Solve for x
   x = 4,757,169.95/1,404.84
6. Step 6: Final answer
   x = 3,386.26