Finding the Third Proportional to 680,871 and 1,024,243.50

Step by Step Solution

1. Step 1: Write the proportion equation
   680,871 : 1,024,243.50 = 1,024,243.50 : x
2. Step 2: Convert to fraction form
   680,871/1,024,243.50 = 1,024,243.50/x
3. Step 3: Cross multiply
   680,871x = 1,024,243.50 × 1,024,243.50
4. Step 4: Simplify right side
   680,871x = 1,049,074,747,292.25
5. Step 5: Solve for x
   x = 1,049,074,747,292.25/680,871
6. Step 6: Final answer
   x = 1,540,783.42