Finding the Third Proportional to 302,781 and 720,016.50

Step by Step Solution

1. Step 1: Write the proportion equation
   302,781 : 720,016.50 = 720,016.50 : x
2. Step 2: Convert to fraction form
   302,781/720,016.50 = 720,016.50/x
3. Step 3: Cross multiply
   302,781x = 720,016.50 × 720,016.50
4. Step 4: Simplify right side
   302,781x = 518,423,760,272.25
5. Step 5: Solve for x
   x = 518,423,760,272.25/302,781
6. Step 6: Final answer
   x = 1,712,207.04