Finding the Third Proportional to 552,430 and 1,203,272

Step by Step Solution

1. Step 1: Write the proportion equation
   552,430 : 1,203,272 = 1,203,272 : x
2. Step 2: Convert to fraction form
   552,430/1,203,272 = 1,203,272/x
3. Step 3: Cross multiply
   552,430x = 1,203,272 × 1,203,272
4. Step 4: Simplify right side
   552,430x = 1,447,863,505,984
5. Step 5: Solve for x
   x = 1,447,863,505,984/552,430
6. Step 6: Final answer
   x = 2,620,899.49