Finding the Third Proportional to 123,064.31 and 268,904.81

Step by Step Solution

1. Step 1: Write the proportion equation
   123,064.31 : 268,904.81 = 268,904.81 : x
2. Step 2: Convert to fraction form
   123,064.31/268,904.81 = 268,904.81/x
3. Step 3: Cross multiply
   123,064.31x = 268,904.81 × 268,904.81
4. Step 4: Simplify right side
   123,064.31x = 72,309,798,185.66
5. Step 5: Solve for x
   x = 72,309,798,185.66/123,064.31
6. Step 6: Final answer
   x = 587,577.31