Finding the Third Proportional to 1,438,887 and 3,108,318

Step by Step Solution

1. Step 1: Write the proportion equation
   1,438,887 : 3,108,318 = 3,108,318 : x
2. Step 2: Convert to fraction form
   1,438,887/3,108,318 = 3,108,318/x
3. Step 3: Cross multiply
   1,438,887x = 3,108,318 × 3,108,318
4. Step 4: Simplify right side
   1,438,887x = 9,661,640,789,124
5. Step 5: Solve for x
   x = 9,661,640,789,124/1,438,887
6. Step 6: Final answer
   x = 6,714,662.64