Finding the Third Proportional to 163,078.50 and 249,480

Step by Step Solution

1. Step 1: Write the proportion equation
   163,078.50 : 249,480 = 249,480 : x
2. Step 2: Convert to fraction form
   163,078.50/249,480 = 249,480/x
3. Step 3: Cross multiply
   163,078.50x = 249,480 × 249,480
4. Step 4: Simplify right side
   163,078.50x = 62,240,270,400
5. Step 5: Solve for x
   x = 62,240,270,400/163,078.50
6. Step 6: Final answer
   x = 381,658.34