Finding the Third Proportional to 552,388 and 1,210,170

Step by Step Solution

1. Step 1: Write the proportion equation
   552,388 : 1,210,170 = 1,210,170 : x
2. Step 2: Convert to fraction form
   552,388/1,210,170 = 1,210,170/x
3. Step 3: Cross multiply
   552,388x = 1,210,170 × 1,210,170
4. Step 4: Simplify right side
   552,388x = 1,464,511,428,900
5. Step 5: Solve for x
   x = 1,464,511,428,900/552,388
6. Step 6: Final answer
   x = 2,651,236.86