Finding the Third Proportional to 519,864 and 1,117,086

Step by Step Solution

1. Step 1: Write the proportion equation
   519,864 : 1,117,086 = 1,117,086 : x
2. Step 2: Convert to fraction form
   519,864/1,117,086 = 1,117,086/x
3. Step 3: Cross multiply
   519,864x = 1,117,086 × 1,117,086
4. Step 4: Simplify right side
   519,864x = 1,247,881,131,396
5. Step 5: Solve for x
   x = 1,247,881,131,396/519,864
6. Step 6: Final answer
   x = 2,400,399.20