Finding the Third Proportional to 1,662,181 and 3,639,645

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662,181 : 3,639,645 = 3,639,645 : x
2. Step 2: Convert to fraction form
   1,662,181/3,639,645 = 3,639,645/x
3. Step 3: Cross multiply
   1,662,181x = 3,639,645 × 3,639,645
4. Step 4: Simplify right side
   1,662,181x = 13,247,015,726,025
5. Step 5: Solve for x
   x = 13,247,015,726,025/1,662,181
6. Step 6: Final answer
   x = 7,969,658.98