Finding the Third Proportional to 158,328 and 245,513

Step by Step Solution

1. Step 1: Write the proportion equation
   158,328 : 245,513 = 245,513 : x
2. Step 2: Convert to fraction form
   158,328/245,513 = 245,513/x
3. Step 3: Cross multiply
   158,328x = 245,513 × 245,513
4. Step 4: Simplify right side
   158,328x = 60,276,633,169
5. Step 5: Solve for x
   x = 60,276,633,169/158,328
6. Step 6: Final answer
   x = 380,707.35