Finding the Third Proportional to 371,574 and 517,016.25

Step by Step Solution

1. Step 1: Write the proportion equation
   371,574 : 517,016.25 = 517,016.25 : x
2. Step 2: Convert to fraction form
   371,574/517,016.25 = 517,016.25/x
3. Step 3: Cross multiply
   371,574x = 517,016.25 × 517,016.25
4. Step 4: Simplify right side
   371,574x = 267,305,802,764.06
5. Step 5: Solve for x
   x = 267,305,802,764.06/371,574
6. Step 6: Final answer
   x = 719,387.80