Finding the Third Proportional to 208,478 and 491,650

Step by Step Solution

1. Step 1: Write the proportion equation
   208,478 : 491,650 = 491,650 : x
2. Step 2: Convert to fraction form
   208,478/491,650 = 491,650/x
3. Step 3: Cross multiply
   208,478x = 491,650 × 491,650
4. Step 4: Simplify right side
   208,478x = 241,719,722,500
5. Step 5: Solve for x
   x = 241,719,722,500/208,478
6. Step 6: Final answer
   x = 1,159,449.55