Finding the Third Proportional to 641,380 and 1,382,182

Step by Step Solution

1. Step 1: Write the proportion equation
   641,380 : 1,382,182 = 1,382,182 : x
2. Step 2: Convert to fraction form
   641,380/1,382,182 = 1,382,182/x
3. Step 3: Cross multiply
   641,380x = 1,382,182 × 1,382,182
4. Step 4: Simplify right side
   641,380x = 1,910,427,081,124
5. Step 5: Solve for x
   x = 1,910,427,081,124/641,380
6. Step 6: Final answer
   x = 2,978,619.67