Finding the Third Proportional to 258,944,627.25 and 554,824,404

Step by Step Solution

1. Step 1: Write the proportion equation
   258,944,627.25 : 554,824,404 = 554,824,404 : x
2. Step 2: Convert to fraction form
   258,944,627.25/554,824,404 = 554,824,404/x
3. Step 3: Cross multiply
   258,944,627.25x = 554,824,404 × 554,824,404
4. Step 4: Simplify right side
   258,944,627.25x = 307,830,119,273,955,200
5. Step 5: Solve for x
   x = 307,830,119,273,955,200/258,944,627.25
6. Step 6: Final answer
   x = 1,188,787,435.15