Finding the Third Proportional to 2,142,864 and 4,463,244

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,864 : 4,463,244 = 4,463,244 : x
2. Step 2: Convert to fraction form
   2,142,864/4,463,244 = 4,463,244/x
3. Step 3: Cross multiply
   2,142,864x = 4,463,244 × 4,463,244
4. Step 4: Simplify right side
   2,142,864x = 19,920,547,003,536
5. Step 5: Solve for x
   x = 19,920,547,003,536/2,142,864
6. Step 6: Final answer
   x = 9,296,225.52