Finding the Third Proportional to 2,100,204 and 4,580,536

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100,204 : 4,580,536 = 4,580,536 : x
2. Step 2: Convert to fraction form
   2,100,204/4,580,536 = 4,580,536/x
3. Step 3: Cross multiply
   2,100,204x = 4,580,536 × 4,580,536
4. Step 4: Simplify right side
   2,100,204x = 20,981,310,047,296
5. Step 5: Solve for x
   x = 20,981,310,047,296/2,100,204
6. Step 6: Final answer
   x = 9,990,129.55