Finding the Third Proportional to 245,860.50 and 379,707

Step by Step Solution

1. Step 1: Write the proportion equation
   245,860.50 : 379,707 = 379,707 : x
2. Step 2: Convert to fraction form
   245,860.50/379,707 = 379,707/x
3. Step 3: Cross multiply
   245,860.50x = 379,707 × 379,707
4. Step 4: Simplify right side
   245,860.50x = 144,177,405,849
5. Step 5: Solve for x
   x = 144,177,405,849/245,860.50
6. Step 6: Final answer
   x = 586,419.56