Finding the Third Proportional to 252,258 and 554,350.50

Step by Step Solution

1. Step 1: Write the proportion equation
   252,258 : 554,350.50 = 554,350.50 : x
2. Step 2: Convert to fraction form
   252,258/554,350.50 = 554,350.50/x
3. Step 3: Cross multiply
   252,258x = 554,350.50 × 554,350.50
4. Step 4: Simplify right side
   252,258x = 307,304,476,850.25
5. Step 5: Solve for x
   x = 307,304,476,850.25/252,258
6. Step 6: Final answer
   x = 1,218,214.99