Finding the Third Proportional to 249,788.81 and 338,597.72

Step by Step Solution

1. Step 1: Write the proportion equation
   249,788.81 : 338,597.72 = 338,597.72 : x
2. Step 2: Convert to fraction form
   249,788.81/338,597.72 = 338,597.72/x
3. Step 3: Cross multiply
   249,788.81x = 338,597.72 × 338,597.72
4. Step 4: Simplify right side
   249,788.81x = 114,648,415,142.70
5. Step 5: Solve for x
   x = 114,648,415,142.70/249,788.81
6. Step 6: Final answer
   x = 458,981.39