Finding the Third Proportional to 1,823,566 and 4,221,230

Step by Step Solution

1. Step 1: Write the proportion equation
   1,823,566 : 4,221,230 = 4,221,230 : x
2. Step 2: Convert to fraction form
   1,823,566/4,221,230 = 4,221,230/x
3. Step 3: Cross multiply
   1,823,566x = 4,221,230 × 4,221,230
4. Step 4: Simplify right side
   1,823,566x = 17,818,782,712,900
5. Step 5: Solve for x
   x = 17,818,782,712,900/1,823,566
6. Step 6: Final answer
   x = 9,771,394.46