Finding the Third Proportional to 518,807 and 1,128,514

Step by Step Solution

1. Step 1: Write the proportion equation
   518,807 : 1,128,514 = 1,128,514 : x
2. Step 2: Convert to fraction form
   518,807/1,128,514 = 1,128,514/x
3. Step 3: Cross multiply
   518,807x = 1,128,514 × 1,128,514
4. Step 4: Simplify right side
   518,807x = 1,273,543,848,196
5. Step 5: Solve for x
   x = 1,273,543,848,196/518,807
6. Step 6: Final answer
   x = 2,454,754.56