Finding the Third Proportional to 1,240,384 and 1,867,836

Step by Step Solution

1. Step 1: Write the proportion equation
   1,240,384 : 1,867,836 = 1,867,836 : x
2. Step 2: Convert to fraction form
   1,240,384/1,867,836 = 1,867,836/x
3. Step 3: Cross multiply
   1,240,384x = 1,867,836 × 1,867,836
4. Step 4: Simplify right side
   1,240,384x = 3,488,811,322,896
5. Step 5: Solve for x
   x = 3,488,811,322,896/1,240,384
6. Step 6: Final answer
   x = 2,812,686.49