Finding the Third Proportional to 519,842 and 1,117,039

Step by Step Solution

1. Step 1: Write the proportion equation
   519,842 : 1,117,039 = 1,117,039 : x
2. Step 2: Convert to fraction form
   519,842/1,117,039 = 1,117,039/x
3. Step 3: Cross multiply
   519,842x = 1,117,039 × 1,117,039
4. Step 4: Simplify right side
   519,842x = 1,247,776,127,521
5. Step 5: Solve for x
   x = 1,247,776,127,521/519,842
6. Step 6: Final answer
   x = 2,400,298.80