Finding the Third Proportional to 248,310 and 384,410.25

Step by Step Solution

1. Step 1: Write the proportion equation
   248,310 : 384,410.25 = 384,410.25 : x
2. Step 2: Convert to fraction form
   248,310/384,410.25 = 384,410.25/x
3. Step 3: Cross multiply
   248,310x = 384,410.25 × 384,410.25
4. Step 4: Simplify right side
   248,310x = 147,771,240,305.06
5. Step 5: Solve for x
   x = 147,771,240,305.06/248,310
6. Step 6: Final answer
   x = 595,107.89