Finding the Third Proportional to 1,823,572 and 4,221,244

Step by Step Solution

1. Step 1: Write the proportion equation
   1,823,572 : 4,221,244 = 4,221,244 : x
2. Step 2: Convert to fraction form
   1,823,572/4,221,244 = 4,221,244/x
3. Step 3: Cross multiply
   1,823,572x = 4,221,244 × 4,221,244
4. Step 4: Simplify right side
   1,823,572x = 17,818,900,907,536
5. Step 5: Solve for x
   x = 17,818,900,907,536/1,823,572
6. Step 6: Final answer
   x = 9,771,427.13