Finding the Third Proportional to 516,386 and 1,126,228

Step by Step Solution

1. Step 1: Write the proportion equation
   516,386 : 1,126,228 = 1,126,228 : x
2. Step 2: Convert to fraction form
   516,386/1,126,228 = 1,126,228/x
3. Step 3: Cross multiply
   516,386x = 1,126,228 × 1,126,228
4. Step 4: Simplify right side
   516,386x = 1,268,389,507,984
5. Step 5: Solve for x
   x = 1,268,389,507,984/516,386
6. Step 6: Final answer
   x = 2,456,281.75