Finding the Third Proportional to 19,837,638 and 30,640,422

Step by Step Solution

1. Step 1: Write the proportion equation
   19,837,638 : 30,640,422 = 30,640,422 : x
2. Step 2: Convert to fraction form
   19,837,638/30,640,422 = 30,640,422/x
3. Step 3: Cross multiply
   19,837,638x = 30,640,422 × 30,640,422
4. Step 4: Simplify right side
   19,837,638x = 938,835,460,338,084
5. Step 5: Solve for x
   x = 938,835,460,338,084/19,837,638
6. Step 6: Final answer
   x = 47,325,969.97