Finding the Third Proportional to 1,248,187 and 2,686,005

Step by Step Solution

1. Step 1: Write the proportion equation
   1,248,187 : 2,686,005 = 2,686,005 : x
2. Step 2: Convert to fraction form
   1,248,187/2,686,005 = 2,686,005/x
3. Step 3: Cross multiply
   1,248,187x = 2,686,005 × 2,686,005
4. Step 4: Simplify right side
   1,248,187x = 7,214,622,860,025
5. Step 5: Solve for x
   x = 7,214,622,860,025/1,248,187
6. Step 6: Final answer
   x = 5,780,081.72