Finding the Third Proportional to 3,486,456 and 7,590,456

Step by Step Solution

1. Step 1: Write the proportion equation
   3,486,456 : 7,590,456 = 7,590,456 : x
2. Step 2: Convert to fraction form
   3,486,456/7,590,456 = 7,590,456/x
3. Step 3: Cross multiply
   3,486,456x = 7,590,456 × 7,590,456
4. Step 4: Simplify right side
   3,486,456x = 57,615,022,287,936
5. Step 5: Solve for x
   x = 57,615,022,287,936/3,486,456
6. Step 6: Final answer
   x = 16,525,383.45