Finding the Third Proportional to 1,823,564 and 4,221,226

Step by Step Solution

1. Step 1: Write the proportion equation
   1,823,564 : 4,221,226 = 4,221,226 : x
2. Step 2: Convert to fraction form
   1,823,564/4,221,226 = 4,221,226/x
3. Step 3: Cross multiply
   1,823,564x = 4,221,226 × 4,221,226
4. Step 4: Simplify right side
   1,823,564x = 17,818,748,943,076
5. Step 5: Solve for x
   x = 17,818,748,943,076/1,823,564
6. Step 6: Final answer
   x = 9,771,386.66