Finding the Third Proportional to 2,021,953 and 4,328,216

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021,953 : 4,328,216 = 4,328,216 : x
2. Step 2: Convert to fraction form
   2,021,953/4,328,216 = 4,328,216/x
3. Step 3: Cross multiply
   2,021,953x = 4,328,216 × 4,328,216
4. Step 4: Simplify right side
   2,021,953x = 18,733,453,742,656
5. Step 5: Solve for x
   x = 18,733,453,742,656/2,021,953
6. Step 6: Final answer
   x = 9,265,029.28