Finding the Third Proportional to 53,291.25 and 123,383.25

Step by Step Solution

1. Step 1: Write the proportion equation
   53,291.25 : 123,383.25 = 123,383.25 : x
2. Step 2: Convert to fraction form
   53,291.25/123,383.25 = 123,383.25/x
3. Step 3: Cross multiply
   53,291.25x = 123,383.25 × 123,383.25
4. Step 4: Simplify right side
   53,291.25x = 15,223,426,380.56
5. Step 5: Solve for x
   x = 15,223,426,380.56/53,291.25
6. Step 6: Final answer
   x = 285,664.65