Finding the Third Proportional to 241,311 and 317,326.50

Step by Step Solution

1. Step 1: Write the proportion equation
   241,311 : 317,326.50 = 317,326.50 : x
2. Step 2: Convert to fraction form
   241,311/317,326.50 = 317,326.50/x
3. Step 3: Cross multiply
   241,311x = 317,326.50 × 317,326.50
4. Step 4: Simplify right side
   241,311x = 100,696,107,602.25
5. Step 5: Solve for x
   x = 100,696,107,602.25/241,311
6. Step 6: Final answer
   x = 417,287.68