Finding the Third Proportional to 1,515,256 and 3,366,840

Step by Step Solution

1. Step 1: Write the proportion equation
   1,515,256 : 3,366,840 = 3,366,840 : x
2. Step 2: Convert to fraction form
   1,515,256/3,366,840 = 3,366,840/x
3. Step 3: Cross multiply
   1,515,256x = 3,366,840 × 3,366,840
4. Step 4: Simplify right side
   1,515,256x = 11,335,611,585,600
5. Step 5: Solve for x
   x = 11,335,611,585,600/1,515,256
6. Step 6: Final answer
   x = 7,480,987.76