Finding the Third Proportional to 515,822 and 1,120,259

Step by Step Solution

1. Step 1: Write the proportion equation
   515,822 : 1,120,259 = 1,120,259 : x
2. Step 2: Convert to fraction form
   515,822/1,120,259 = 1,120,259/x
3. Step 3: Cross multiply
   515,822x = 1,120,259 × 1,120,259
4. Step 4: Simplify right side
   515,822x = 1,254,980,227,081
5. Step 5: Solve for x
   x = 1,254,980,227,081/515,822
6. Step 6: Final answer
   x = 2,432,971.50