Finding the Third Proportional to 1,640,538 and 3,514,356

Step by Step Solution

1. Step 1: Write the proportion equation
   1,640,538 : 3,514,356 = 3,514,356 : x
2. Step 2: Convert to fraction form
   1,640,538/3,514,356 = 3,514,356/x
3. Step 3: Cross multiply
   1,640,538x = 3,514,356 × 3,514,356
4. Step 4: Simplify right side
   1,640,538x = 12,350,698,094,736
5. Step 5: Solve for x
   x = 12,350,698,094,736/1,640,538
6. Step 6: Final answer
   x = 7,528,443.78