Finding the Third Proportional to 1,276,128 and 2,803,836

Step by Step Solution

1. Step 1: Write the proportion equation
   1,276,128 : 2,803,836 = 2,803,836 : x
2. Step 2: Convert to fraction form
   1,276,128/2,803,836 = 2,803,836/x
3. Step 3: Cross multiply
   1,276,128x = 2,803,836 × 2,803,836
4. Step 4: Simplify right side
   1,276,128x = 7,861,496,314,896
5. Step 5: Solve for x
   x = 7,861,496,314,896/1,276,128
6. Step 6: Final answer
   x = 6,160,429.29