Finding the Third Proportional to 1,678,272 and 2,581,120

Step by Step Solution

1. Step 1: Write the proportion equation
   1,678,272 : 2,581,120 = 2,581,120 : x
2. Step 2: Convert to fraction form
   1,678,272/2,581,120 = 2,581,120/x
3. Step 3: Cross multiply
   1,678,272x = 2,581,120 × 2,581,120
4. Step 4: Simplify right side
   1,678,272x = 6,662,180,454,400
5. Step 5: Solve for x
   x = 6,662,180,454,400/1,678,272
6. Step 6: Final answer
   x = 3,969,666.69