Finding the Third Proportional to 1,209,726 and 2,562,660

Step by Step Solution

1. Step 1: Write the proportion equation
   1,209,726 : 2,562,660 = 2,562,660 : x
2. Step 2: Convert to fraction form
   1,209,726/2,562,660 = 2,562,660/x
3. Step 3: Cross multiply
   1,209,726x = 2,562,660 × 2,562,660
4. Step 4: Simplify right side
   1,209,726x = 6,567,226,275,600
5. Step 5: Solve for x
   x = 6,567,226,275,600/1,209,726
6. Step 6: Final answer
   x = 5,428,689.04