Finding the Third Proportional to 500,478 and 1,042,374

Step by Step Solution

1. Step 1: Write the proportion equation
   500,478 : 1,042,374 = 1,042,374 : x
2. Step 2: Convert to fraction form
   500,478/1,042,374 = 1,042,374/x
3. Step 3: Cross multiply
   500,478x = 1,042,374 × 1,042,374
4. Step 4: Simplify right side
   500,478x = 1,086,543,555,876
5. Step 5: Solve for x
   x = 1,086,543,555,876/500,478
6. Step 6: Final answer
   x = 2,171,011.62