Finding the Third Proportional to 1,267,380 and 1,721,790

Step by Step Solution

1. Step 1: Write the proportion equation
   1,267,380 : 1,721,790 = 1,721,790 : x
2. Step 2: Convert to fraction form
   1,267,380/1,721,790 = 1,721,790/x
3. Step 3: Cross multiply
   1,267,380x = 1,721,790 × 1,721,790
4. Step 4: Simplify right side
   1,267,380x = 2,964,560,804,100
5. Step 5: Solve for x
   x = 2,964,560,804,100/1,267,380
6. Step 6: Final answer
   x = 2,339,125.44