Finding the Third Proportional to 357,879.75 and 780,063

Step by Step Solution

1. Step 1: Write the proportion equation
   357,879.75 : 780,063 = 780,063 : x
2. Step 2: Convert to fraction form
   357,879.75/780,063 = 780,063/x
3. Step 3: Cross multiply
   357,879.75x = 780,063 × 780,063
4. Step 4: Simplify right side
   357,879.75x = 608,498,283,969
5. Step 5: Solve for x
   x = 608,498,283,969/357,879.75
6. Step 6: Final answer
   x = 1,700,286.99