Finding the Third Proportional to 2,507,520 and 5,512,640

Step by Step Solution

1. Step 1: Write the proportion equation
   2,507,520 : 5,512,640 = 5,512,640 : x
2. Step 2: Convert to fraction form
   2,507,520/5,512,640 = 5,512,640/x
3. Step 3: Cross multiply
   2,507,520x = 5,512,640 × 5,512,640
4. Step 4: Simplify right side
   2,507,520x = 30,389,199,769,600
5. Step 5: Solve for x
   x = 30,389,199,769,600/2,507,520
6. Step 6: Final answer
   x = 12,119,225.28