Finding the Third Proportional to 1,836,440 and 3,967,964

Step by Step Solution

1. Step 1: Write the proportion equation
   1,836,440 : 3,967,964 = 3,967,964 : x
2. Step 2: Convert to fraction form
   1,836,440/3,967,964 = 3,967,964/x
3. Step 3: Cross multiply
   1,836,440x = 3,967,964 × 3,967,964
4. Step 4: Simplify right side
   1,836,440x = 15,744,738,305,296
5. Step 5: Solve for x
   x = 15,744,738,305,296/1,836,440
6. Step 6: Final answer
   x = 8,573,510.87