Finding the Third Proportional to 1,915,223 and 4,112,692

Step by Step Solution

1. Step 1: Write the proportion equation
   1,915,223 : 4,112,692 = 4,112,692 : x
2. Step 2: Convert to fraction form
   1,915,223/4,112,692 = 4,112,692/x
3. Step 3: Cross multiply
   1,915,223x = 4,112,692 × 4,112,692
4. Step 4: Simplify right side
   1,915,223x = 16,914,235,486,864
5. Step 5: Solve for x
   x = 16,914,235,486,864/1,915,223
6. Step 6: Final answer
   x = 8,831,470.53