Finding the Third Proportional to 1,822,724 and 3,988,712

Step by Step Solution

1. Step 1: Write the proportion equation
   1,822,724 : 3,988,712 = 3,988,712 : x
2. Step 2: Convert to fraction form
   1,822,724/3,988,712 = 3,988,712/x
3. Step 3: Cross multiply
   1,822,724x = 3,988,712 × 3,988,712
4. Step 4: Simplify right side
   1,822,724x = 15,909,823,418,944
5. Step 5: Solve for x
   x = 15,909,823,418,944/1,822,724
6. Step 6: Final answer
   x = 8,728,597.10