Finding the Third Proportional to 2,155,936 and 4,694,360

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155,936 : 4,694,360 = 4,694,360 : x
2. Step 2: Convert to fraction form
   2,155,936/4,694,360 = 4,694,360/x
3. Step 3: Cross multiply
   2,155,936x = 4,694,360 × 4,694,360
4. Step 4: Simplify right side
   2,155,936x = 22,037,015,809,600
5. Step 5: Solve for x
   x = 22,037,015,809,600/2,155,936
6. Step 6: Final answer
   x = 10,221,553.80