Finding the Third Proportional to 160,300 and 249,200

Step by Step Solution

1. Step 1: Write the proportion equation
   160,300 : 249,200 = 249,200 : x
2. Step 2: Convert to fraction form
   160,300/249,200 = 249,200/x
3. Step 3: Cross multiply
   160,300x = 249,200 × 249,200
4. Step 4: Simplify right side
   160,300x = 62,100,640,000
5. Step 5: Solve for x
   x = 62,100,640,000/160,300
6. Step 6: Final answer
   x = 387,402.62