Finding the Third Proportional to 368,713.50 and 774,507

Step by Step Solution

1. Step 1: Write the proportion equation
   368,713.50 : 774,507 = 774,507 : x
2. Step 2: Convert to fraction form
   368,713.50/774,507 = 774,507/x
3. Step 3: Cross multiply
   368,713.50x = 774,507 × 774,507
4. Step 4: Simplify right side
   368,713.50x = 599,861,093,049
5. Step 5: Solve for x
   x = 599,861,093,049/368,713.50
6. Step 6: Final answer
   x = 1,626,902.98