Finding the Third Proportional to 518,172 and 1,115,076

Step by Step Solution

1. Step 1: Write the proportion equation
   518,172 : 1,115,076 = 1,115,076 : x
2. Step 2: Convert to fraction form
   518,172/1,115,076 = 1,115,076/x
3. Step 3: Cross multiply
   518,172x = 1,115,076 × 1,115,076
4. Step 4: Simplify right side
   518,172x = 1,243,394,485,776
5. Step 5: Solve for x
   x = 1,243,394,485,776/518,172
6. Step 6: Final answer
   x = 2,399,578.68