Finding the Third Proportional to 552,129 and 1,191,245

Step by Step Solution

1. Step 1: Write the proportion equation
   552,129 : 1,191,245 = 1,191,245 : x
2. Step 2: Convert to fraction form
   552,129/1,191,245 = 1,191,245/x
3. Step 3: Cross multiply
   552,129x = 1,191,245 × 1,191,245
4. Step 4: Simplify right side
   552,129x = 1,419,064,650,025
5. Step 5: Solve for x
   x = 1,419,064,650,025/552,129
6. Step 6: Final answer
   x = 2,570,168.66