Finding the Third Proportional to 1,823,646 and 4,221,769

Step by Step Solution

1. Step 1: Write the proportion equation
   1,823,646 : 4,221,769 = 4,221,769 : x
2. Step 2: Convert to fraction form
   1,823,646/4,221,769 = 4,221,769/x
3. Step 3: Cross multiply
   1,823,646x = 4,221,769 × 4,221,769
4. Step 4: Simplify right side
   1,823,646x = 17,823,333,489,361
5. Step 5: Solve for x
   x = 17,823,333,489,361/1,823,646
6. Step 6: Final answer
   x = 9,773,461.24