Finding the Third Proportional to 1,368,128 and 2,969,864

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368,128 : 2,969,864 = 2,969,864 : x
2. Step 2: Convert to fraction form
   1,368,128/2,969,864 = 2,969,864/x
3. Step 3: Cross multiply
   1,368,128x = 2,969,864 × 2,969,864
4. Step 4: Simplify right side
   1,368,128x = 8,820,092,178,496
5. Step 5: Solve for x
   x = 8,820,092,178,496/1,368,128
6. Step 6: Final answer
   x = 6,446,832.59