Finding the Third Proportional to 162,320 and 249,648

Step by Step Solution

1. Step 1: Write the proportion equation
   162,320 : 249,648 = 249,648 : x
2. Step 2: Convert to fraction form
   162,320/249,648 = 249,648/x
3. Step 3: Cross multiply
   162,320x = 249,648 × 249,648
4. Step 4: Simplify right side
   162,320x = 62,324,123,904
5. Step 5: Solve for x
   x = 62,324,123,904/162,320
6. Step 6: Final answer
   x = 383,958.38