Finding the Third Proportional to 1,678,264 and 2,581,108

Step by Step Solution

1. Step 1: Write the proportion equation
   1,678,264 : 2,581,108 = 2,581,108 : x
2. Step 2: Convert to fraction form
   1,678,264/2,581,108 = 2,581,108/x
3. Step 3: Cross multiply
   1,678,264x = 2,581,108 × 2,581,108
4. Step 4: Simplify right side
   1,678,264x = 6,662,118,507,664
5. Step 5: Solve for x
   x = 6,662,118,507,664/1,678,264
6. Step 6: Final answer
   x = 3,969,648.70