Finding the Third Proportional to 288,563,005.50 and 605,469,530.25

Step by Step Solution

1. Step 1: Write the proportion equation
   288,563,005.50 : 605,469,530.25 = 605,469,530.25 : x
2. Step 2: Convert to fraction form
   288,563,005.50/605,469,530.25 = 605,469,530.25/x
3. Step 3: Cross multiply
   288,563,005.50x = 605,469,530.25 × 605,469,530.25
4. Step 4: Simplify right side
   288,563,005.50x = 366,593,352,061,155,648
5. Step 5: Solve for x
   x = 366,593,352,061,155,648/288,563,005.50
6. Step 6: Final answer
   x = 1,270,410,084.02