Finding the Third Proportional to 456,616 and 991,042

Step by Step Solution

1. Step 1: Write the proportion equation
   456,616 : 991,042 = 991,042 : x
2. Step 2: Convert to fraction form
   456,616/991,042 = 991,042/x
3. Step 3: Cross multiply
   456,616x = 991,042 × 991,042
4. Step 4: Simplify right side
   456,616x = 982,164,245,764
5. Step 5: Solve for x
   x = 982,164,245,764/456,616
6. Step 6: Final answer
   x = 2,150,963.27