Finding the Third Proportional to 680,960 and 1,030,920

Step by Step Solution

1. Step 1: Write the proportion equation
   680,960 : 1,030,920 = 1,030,920 : x
2. Step 2: Convert to fraction form
   680,960/1,030,920 = 1,030,920/x
3. Step 3: Cross multiply
   680,960x = 1,030,920 × 1,030,920
4. Step 4: Simplify right side
   680,960x = 1,062,796,046,400
5. Step 5: Solve for x
   x = 1,062,796,046,400/680,960
6. Step 6: Final answer
   x = 1,560,731.98