Finding the Third Proportional to 1,310,129 and 2,864,649

Step by Step Solution

1. Step 1: Write the proportion equation
   1,310,129 : 2,864,649 = 2,864,649 : x
2. Step 2: Convert to fraction form
   1,310,129/2,864,649 = 2,864,649/x
3. Step 3: Cross multiply
   1,310,129x = 2,864,649 × 2,864,649
4. Step 4: Simplify right side
   1,310,129x = 8,206,213,893,201
5. Step 5: Solve for x
   x = 8,206,213,893,201/1,310,129
6. Step 6: Final answer
   x = 6,263,668.61