Finding the Third Proportional to 539,746.50 and 792,123

Step by Step Solution

1. Step 1: Write the proportion equation
   539,746.50 : 792,123 = 792,123 : x
2. Step 2: Convert to fraction form
   539,746.50/792,123 = 792,123/x
3. Step 3: Cross multiply
   539,746.50x = 792,123 × 792,123
4. Step 4: Simplify right side
   539,746.50x = 627,458,847,129
5. Step 5: Solve for x
   x = 627,458,847,129/539,746.50
6. Step 6: Final answer
   x = 1,162,506.56