Finding the Third Proportional to 516,109 and 1,115,256

Step by Step Solution

1. Step 1: Write the proportion equation
   516,109 : 1,115,256 = 1,115,256 : x
2. Step 2: Convert to fraction form
   516,109/1,115,256 = 1,115,256/x
3. Step 3: Cross multiply
   516,109x = 1,115,256 × 1,115,256
4. Step 4: Simplify right side
   516,109x = 1,243,795,945,536
5. Step 5: Solve for x
   x = 1,243,795,945,536/516,109
6. Step 6: Final answer
   x = 2,409,948.18