Finding the Third Proportional to 1,328,608 and 2,115,076

Step by Step Solution

1. Step 1: Write the proportion equation
   1,328,608 : 2,115,076 = 2,115,076 : x
2. Step 2: Convert to fraction form
   1,328,608/2,115,076 = 2,115,076/x
3. Step 3: Cross multiply
   1,328,608x = 2,115,076 × 2,115,076
4. Step 4: Simplify right side
   1,328,608x = 4,473,546,485,776
5. Step 5: Solve for x
   x = 4,473,546,485,776/1,328,608
6. Step 6: Final answer
   x = 3,367,092.84