Finding the Third Proportional to 8,081,640 and 12,547,422

Step by Step Solution

1. Step 1: Write the proportion equation
   8,081,640 : 12,547,422 = 12,547,422 : x
2. Step 2: Convert to fraction form
   8,081,640/12,547,422 = 12,547,422/x
3. Step 3: Cross multiply
   8,081,640x = 12,547,422 × 12,547,422
4. Step 4: Simplify right side
   8,081,640x = 157,437,798,846,084
5. Step 5: Solve for x
   x = 157,437,798,846,084/8,081,640
6. Step 6: Final answer
   x = 19,480,922.05