Finding the Third Proportional to 379,048 and 817,142

Step by Step Solution

1. Step 1: Write the proportion equation
   379,048 : 817,142 = 817,142 : x
2. Step 2: Convert to fraction form
   379,048/817,142 = 817,142/x
3. Step 3: Cross multiply
   379,048x = 817,142 × 817,142
4. Step 4: Simplify right side
   379,048x = 667,721,048,164
5. Step 5: Solve for x
   x = 667,721,048,164/379,048
6. Step 6: Final answer
   x = 1,761,573.86