Finding the Third Proportional to 158,688 and 245,870

Step by Step Solution

1. Step 1: Write the proportion equation
   158,688 : 245,870 = 245,870 : x
2. Step 2: Convert to fraction form
   158,688/245,870 = 245,870/x
3. Step 3: Cross multiply
   158,688x = 245,870 × 245,870
4. Step 4: Simplify right side
   158,688x = 60,452,056,900
5. Step 5: Solve for x
   x = 60,452,056,900/158,688
6. Step 6: Final answer
   x = 380,949.14