Finding the Third Proportional to 363,368.50 and 557,764

Step by Step Solution

1. Step 1: Write the proportion equation
   363,368.50 : 557,764 = 557,764 : x
2. Step 2: Convert to fraction form
   363,368.50/557,764 = 557,764/x
3. Step 3: Cross multiply
   363,368.50x = 557,764 × 557,764
4. Step 4: Simplify right side
   363,368.50x = 311,100,679,696
5. Step 5: Solve for x
   x = 311,100,679,696/363,368.50
6. Step 6: Final answer
   x = 856,157.54