Finding the Third Proportional to 249,124.50 and 386,802

Step by Step Solution

1. Step 1: Write the proportion equation
   249,124.50 : 386,802 = 386,802 : x
2. Step 2: Convert to fraction form
   249,124.50/386,802 = 386,802/x
3. Step 3: Cross multiply
   249,124.50x = 386,802 × 386,802
4. Step 4: Simplify right side
   249,124.50x = 149,615,787,204
5. Step 5: Solve for x
   x = 149,615,787,204/249,124.50
6. Step 6: Final answer
   x = 600,566.33