Finding the Third Proportional to 249,429.56 and 380,371.69

Step by Step Solution

1. Step 1: Write the proportion equation
   249,429.56 : 380,371.69 = 380,371.69 : x
2. Step 2: Convert to fraction form
   249,429.56/380,371.69 = 380,371.69/x
3. Step 3: Cross multiply
   249,429.56x = 380,371.69 × 380,371.69
4. Step 4: Simplify right side
   249,429.56x = 144,682,620,651.60
5. Step 5: Solve for x
   x = 144,682,620,651.60/249,429.56
6. Step 6: Final answer
   x = 580,054.02