Finding the Third Proportional to 5,196,640 and 8,163,348

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196,640 : 8,163,348 = 8,163,348 : x
2. Step 2: Convert to fraction form
   5,196,640/8,163,348 = 8,163,348/x
3. Step 3: Cross multiply
   5,196,640x = 8,163,348 × 8,163,348
4. Step 4: Simplify right side
   5,196,640x = 66,640,250,569,104
5. Step 5: Solve for x
   x = 66,640,250,569,104/5,196,640
6. Step 6: Final answer
   x = 12,823,718.90