Finding the Third Proportional to 3,640,242 and 7,899,272

Step by Step Solution

1. Step 1: Write the proportion equation
   3,640,242 : 7,899,272 = 7,899,272 : x
2. Step 2: Convert to fraction form
   3,640,242/7,899,272 = 7,899,272/x
3. Step 3: Cross multiply
   3,640,242x = 7,899,272 × 7,899,272
4. Step 4: Simplify right side
   3,640,242x = 62,398,498,129,984
5. Step 5: Solve for x
   x = 62,398,498,129,984/3,640,242
6. Step 6: Final answer
   x = 17,141,304.93