Finding the Third Proportional to 1,251,240 and 2,679,600

Step by Step Solution

1. Step 1: Write the proportion equation
   1,251,240 : 2,679,600 = 2,679,600 : x
2. Step 2: Convert to fraction form
   1,251,240/2,679,600 = 2,679,600/x
3. Step 3: Cross multiply
   1,251,240x = 2,679,600 × 2,679,600
4. Step 4: Simplify right side
   1,251,240x = 7,180,256,160,000
5. Step 5: Solve for x
   x = 7,180,256,160,000/1,251,240
6. Step 6: Final answer
   x = 5,738,512.32