Finding the Third Proportional to 260,041 and 388,345.50

Step by Step Solution

1. Step 1: Write the proportion equation
   260,041 : 388,345.50 = 388,345.50 : x
2. Step 2: Convert to fraction form
   260,041/388,345.50 = 388,345.50/x
3. Step 3: Cross multiply
   260,041x = 388,345.50 × 388,345.50
4. Step 4: Simplify right side
   260,041x = 150,812,227,370.25
5. Step 5: Solve for x
   x = 150,812,227,370.25/260,041
6. Step 6: Final answer
   x = 579,955.57