Finding the Third Proportional to 265,828.50 and 404,286

Step by Step Solution

1. Step 1: Write the proportion equation
   265,828.50 : 404,286 = 404,286 : x
2. Step 2: Convert to fraction form
   265,828.50/404,286 = 404,286/x
3. Step 3: Cross multiply
   265,828.50x = 404,286 × 404,286
4. Step 4: Simplify right side
   265,828.50x = 163,447,169,796
5. Step 5: Solve for x
   x = 163,447,169,796/265,828.50
6. Step 6: Final answer
   x = 614,859.47