Finding the Third Proportional to 557,005 and 1,189,178

Step by Step Solution

1. Step 1: Write the proportion equation
   557,005 : 1,189,178 = 1,189,178 : x
2. Step 2: Convert to fraction form
   557,005/1,189,178 = 1,189,178/x
3. Step 3: Cross multiply
   557,005x = 1,189,178 × 1,189,178
4. Step 4: Simplify right side
   557,005x = 1,414,144,315,684
5. Step 5: Solve for x
   x = 1,414,144,315,684/557,005
6. Step 6: Final answer
   x = 2,538,835.95