Finding the Third Proportional to 321,894 and 479,034

Step by Step Solution

1. Step 1: Write the proportion equation
   321,894 : 479,034 = 479,034 : x
2. Step 2: Convert to fraction form
   321,894/479,034 = 479,034/x
3. Step 3: Cross multiply
   321,894x = 479,034 × 479,034
4. Step 4: Simplify right side
   321,894x = 229,473,573,156
5. Step 5: Solve for x
   x = 229,473,573,156/321,894
6. Step 6: Final answer
   x = 712,885.52