Finding the Third Proportional to 2,257,423 and 4,820,999

Step by Step Solution

1. Step 1: Write the proportion equation
   2,257,423 : 4,820,999 = 4,820,999 : x
2. Step 2: Convert to fraction form
   2,257,423/4,820,999 = 4,820,999/x
3. Step 3: Cross multiply
   2,257,423x = 4,820,999 × 4,820,999
4. Step 4: Simplify right side
   2,257,423x = 23,242,031,358,001
5. Step 5: Solve for x
   x = 23,242,031,358,001/2,257,423
6. Step 6: Final answer
   x = 10,295,824.65