Finding the Third Proportional to 1,129,144 and 2,485,736

Step by Step Solution

1. Step 1: Write the proportion equation
   1,129,144 : 2,485,736 = 2,485,736 : x
2. Step 2: Convert to fraction form
   1,129,144/2,485,736 = 2,485,736/x
3. Step 3: Cross multiply
   1,129,144x = 2,485,736 × 2,485,736
4. Step 4: Simplify right side
   1,129,144x = 6,178,883,461,696
5. Step 5: Solve for x
   x = 6,178,883,461,696/1,129,144
6. Step 6: Final answer
   x = 5,472,183.76