Finding the Third Proportional to 1,515,328 and 2,300,640

Step by Step Solution

1. Step 1: Write the proportion equation
   1,515,328 : 2,300,640 = 2,300,640 : x
2. Step 2: Convert to fraction form
   1,515,328/2,300,640 = 2,300,640/x
3. Step 3: Cross multiply
   1,515,328x = 2,300,640 × 2,300,640
4. Step 4: Simplify right side
   1,515,328x = 5,292,944,409,600
5. Step 5: Solve for x
   x = 5,292,944,409,600/1,515,328
6. Step 6: Final answer
   x = 3,492,936.45