Finding the Third Proportional to 1,919,781 and 4,147,440

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919,781 : 4,147,440 = 4,147,440 : x
2. Step 2: Convert to fraction form
   1,919,781/4,147,440 = 4,147,440/x
3. Step 3: Cross multiply
   1,919,781x = 4,147,440 × 4,147,440
4. Step 4: Simplify right side
   1,919,781x = 17,201,258,553,600
5. Step 5: Solve for x
   x = 17,201,258,553,600/1,919,781
6. Step 6: Final answer
   x = 8,960,010.83