Finding the Third Proportional to 287,105,826 and 629,795,960

Step by Step Solution

1. Step 1: Write the proportion equation
   287,105,826 : 629,795,960 = 629,795,960 : x
2. Step 2: Convert to fraction form
   287,105,826/629,795,960 = 629,795,960/x
3. Step 3: Cross multiply
   287,105,826x = 629,795,960 × 629,795,960
4. Step 4: Simplify right side
   287,105,826x = 396,642,951,232,321,600
5. Step 5: Solve for x
   x = 396,642,951,232,321,600/287,105,826
6. Step 6: Final answer
   x = 1,381,521,778.08