Finding the Third Proportional to 1,831,599 and 3,988,610

Step by Step Solution

1. Step 1: Write the proportion equation
   1,831,599 : 3,988,610 = 3,988,610 : x
2. Step 2: Convert to fraction form
   1,831,599/3,988,610 = 3,988,610/x
3. Step 3: Cross multiply
   1,831,599x = 3,988,610 × 3,988,610
4. Step 4: Simplify right side
   1,831,599x = 15,909,009,732,100
5. Step 5: Solve for x
   x = 15,909,009,732,100/1,831,599
6. Step 6: Final answer
   x = 8,685,858.49