Finding the Third Proportional to 1,647,988 and 3,473,128

Step by Step Solution

1. Step 1: Write the proportion equation
   1,647,988 : 3,473,128 = 3,473,128 : x
2. Step 2: Convert to fraction form
   1,647,988/3,473,128 = 3,473,128/x
3. Step 3: Cross multiply
   1,647,988x = 3,473,128 × 3,473,128
4. Step 4: Simplify right side
   1,647,988x = 12,062,618,104,384
5. Step 5: Solve for x
   x = 12,062,618,104,384/1,647,988
6. Step 6: Final answer
   x = 7,319,603.12