Finding the Third Proportional to 158,640 and 245,528

Step by Step Solution

1. Step 1: Write the proportion equation
   158,640 : 245,528 = 245,528 : x
2. Step 2: Convert to fraction form
   158,640/245,528 = 245,528/x
3. Step 3: Cross multiply
   158,640x = 245,528 × 245,528
4. Step 4: Simplify right side
   158,640x = 60,283,998,784
5. Step 5: Solve for x
   x = 60,283,998,784/158,640
6. Step 6: Final answer
   x = 380,005.04