Finding the Third Proportional to 354,391.50 and 757,959

Step by Step Solution

1. Step 1: Write the proportion equation
   354,391.50 : 757,959 = 757,959 : x
2. Step 2: Convert to fraction form
   354,391.50/757,959 = 757,959/x
3. Step 3: Cross multiply
   354,391.50x = 757,959 × 757,959
4. Step 4: Simplify right side
   354,391.50x = 574,501,845,681
5. Step 5: Solve for x
   x = 574,501,845,681/354,391.50
6. Step 6: Final answer
   x = 1,621,093.75