Finding the Third Proportional to 1,129,143 and 2,485,734

Step by Step Solution

1. Step 1: Write the proportion equation
   1,129,143 : 2,485,734 = 2,485,734 : x
2. Step 2: Convert to fraction form
   1,129,143/2,485,734 = 2,485,734/x
3. Step 3: Cross multiply
   1,129,143x = 2,485,734 × 2,485,734
4. Step 4: Simplify right side
   1,129,143x = 6,178,873,518,756
5. Step 5: Solve for x
   x = 6,178,873,518,756/1,129,143
6. Step 6: Final answer
   x = 5,472,179.80