Finding the Third Proportional to 378,338.50 and 791,723

Step by Step Solution

1. Step 1: Write the proportion equation
   378,338.50 : 791,723 = 791,723 : x
2. Step 2: Convert to fraction form
   378,338.50/791,723 = 791,723/x
3. Step 3: Cross multiply
   378,338.50x = 791,723 × 791,723
4. Step 4: Simplify right side
   378,338.50x = 626,825,308,729
5. Step 5: Solve for x
   x = 626,825,308,729/378,338.50
6. Step 6: Final answer
   x = 1,656,784.36