Finding the Third Proportional to 2,155,956 and 4,694,400

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155,956 : 4,694,400 = 4,694,400 : x
2. Step 2: Convert to fraction form
   2,155,956/4,694,400 = 4,694,400/x
3. Step 3: Cross multiply
   2,155,956x = 4,694,400 × 4,694,400
4. Step 4: Simplify right side
   2,155,956x = 22,037,391,360,000
5. Step 5: Solve for x
   x = 22,037,391,360,000/2,155,956
6. Step 6: Final answer
   x = 10,221,633.17