Finding the Third Proportional to 288,495 and 627,783.75

Step by Step Solution

1. Step 1: Write the proportion equation
   288,495 : 627,783.75 = 627,783.75 : x
2. Step 2: Convert to fraction form
   288,495/627,783.75 = 627,783.75/x
3. Step 3: Cross multiply
   288,495x = 627,783.75 × 627,783.75
4. Step 4: Simplify right side
   288,495x = 394,112,436,764.06
5. Step 5: Solve for x
   x = 394,112,436,764.06/288,495
6. Step 6: Final answer
   x = 1,366,097.98