Finding the Third Proportional to 3,640,554 and 7,916,484

Step by Step Solution

1. Step 1: Write the proportion equation
   3,640,554 : 7,916,484 = 7,916,484 : x
2. Step 2: Convert to fraction form
   3,640,554/7,916,484 = 7,916,484/x
3. Step 3: Cross multiply
   3,640,554x = 7,916,484 × 7,916,484
4. Step 4: Simplify right side
   3,640,554x = 62,670,718,922,256
5. Step 5: Solve for x
   x = 62,670,718,922,256/3,640,554
6. Step 6: Final answer
   x = 17,214,610.45