Finding the Third Proportional to 219,600 and 479,358

Step by Step Solution

1. Step 1: Write the proportion equation
   219,600 : 479,358 = 479,358 : x
2. Step 2: Convert to fraction form
   219,600/479,358 = 479,358/x
3. Step 3: Cross multiply
   219,600x = 479,358 × 479,358
4. Step 4: Simplify right side
   219,600x = 229,784,092,164
5. Step 5: Solve for x
   x = 229,784,092,164/219,600
6. Step 6: Final answer
   x = 1,046,375.65