Finding the Third Proportional to 1,312,216 and 2,142,714

Step by Step Solution

1. Step 1: Write the proportion equation
   1,312,216 : 2,142,714 = 2,142,714 : x
2. Step 2: Convert to fraction form
   1,312,216/2,142,714 = 2,142,714/x
3. Step 3: Cross multiply
   1,312,216x = 2,142,714 × 2,142,714
4. Step 4: Simplify right side
   1,312,216x = 4,591,223,285,796
5. Step 5: Solve for x
   x = 4,591,223,285,796/1,312,216
6. Step 6: Final answer
   x = 3,498,831.97