Finding the Third Proportional to 451,260 and 980,280

Step by Step Solution

1. Step 1: Write the proportion equation
   451,260 : 980,280 = 980,280 : x
2. Step 2: Convert to fraction form
   451,260/980,280 = 980,280/x
3. Step 3: Cross multiply
   451,260x = 980,280 × 980,280
4. Step 4: Simplify right side
   451,260x = 960,948,878,400
5. Step 5: Solve for x
   x = 960,948,878,400/451,260
6. Step 6: Final answer
   x = 2,129,479.41