Finding the Third Proportional to 1,515,456 and 2,525,408

Step by Step Solution

1. Step 1: Write the proportion equation
   1,515,456 : 2,525,408 = 2,525,408 : x
2. Step 2: Convert to fraction form
   1,515,456/2,525,408 = 2,525,408/x
3. Step 3: Cross multiply
   1,515,456x = 2,525,408 × 2,525,408
4. Step 4: Simplify right side
   1,515,456x = 6,377,685,566,464
5. Step 5: Solve for x
   x = 6,377,685,566,464/1,515,456
6. Step 6: Final answer
   x = 4,208,426.75