Finding the Third Proportional to 1,206,122 and 2,511,490

Step by Step Solution

1. Step 1: Write the proportion equation
   1,206,122 : 2,511,490 = 2,511,490 : x
2. Step 2: Convert to fraction form
   1,206,122/2,511,490 = 2,511,490/x
3. Step 3: Cross multiply
   1,206,122x = 2,511,490 × 2,511,490
4. Step 4: Simplify right side
   1,206,122x = 6,307,582,020,100
5. Step 5: Solve for x
   x = 6,307,582,020,100/1,206,122
6. Step 6: Final answer
   x = 5,229,638.48