Finding the Third Proportional to 249,944.13 and 357,168

Step by Step Solution

1. Step 1: Write the proportion equation
   249,944.13 : 357,168 = 357,168 : x
2. Step 2: Convert to fraction form
   249,944.13/357,168 = 357,168/x
3. Step 3: Cross multiply
   249,944.13x = 357,168 × 357,168
4. Step 4: Simplify right side
   249,944.13x = 127,568,980,224
5. Step 5: Solve for x
   x = 127,568,980,224/249,944.13
6. Step 6: Final answer
   x = 510,389.99