Finding the Third Proportional to 2,100,196 and 4,580,520

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100,196 : 4,580,520 = 4,580,520 : x
2. Step 2: Convert to fraction form
   2,100,196/4,580,520 = 4,580,520/x
3. Step 3: Cross multiply
   2,100,196x = 4,580,520 × 4,580,520
4. Step 4: Simplify right side
   2,100,196x = 20,981,163,470,400
5. Step 5: Solve for x
   x = 20,981,163,470,400/2,100,196
6. Step 6: Final answer
   x = 9,990,097.81