Finding the Third Proportional to 553,921.50 and 792,049.50

Step by Step Solution

1. Step 1: Write the proportion equation
   553,921.50 : 792,049.50 = 792,049.50 : x
2. Step 2: Convert to fraction form
   553,921.50/792,049.50 = 792,049.50/x
3. Step 3: Cross multiply
   553,921.50x = 792,049.50 × 792,049.50
4. Step 4: Simplify right side
   553,921.50x = 627,342,410,450.25
5. Step 5: Solve for x
   x = 627,342,410,450.25/553,921.50
6. Step 6: Final answer
   x = 1,132,547.50