Finding the Third Proportional to 456,399 and 993,042

Step by Step Solution

1. Step 1: Write the proportion equation
   456,399 : 993,042 = 993,042 : x
2. Step 2: Convert to fraction form
   456,399/993,042 = 993,042/x
3. Step 3: Cross multiply
   456,399x = 993,042 × 993,042
4. Step 4: Simplify right side
   456,399x = 986,132,413,764
5. Step 5: Solve for x
   x = 986,132,413,764/456,399
6. Step 6: Final answer
   x = 2,160,680.49