Finding the Third Proportional to 1,128,720 and 2,410,520

Step by Step Solution

1. Step 1: Write the proportion equation
   1,128,720 : 2,410,520 = 2,410,520 : x
2. Step 2: Convert to fraction form
   1,128,720/2,410,520 = 2,410,520/x
3. Step 3: Cross multiply
   1,128,720x = 2,410,520 × 2,410,520
4. Step 4: Simplify right side
   1,128,720x = 5,810,606,670,400
5. Step 5: Solve for x
   x = 5,810,606,670,400/1,128,720
6. Step 6: Final answer
   x = 5,147,961.12