Finding the Third Proportional to 448,930 and 997,510

Step by Step Solution

1. Step 1: Write the proportion equation
   448,930 : 997,510 = 997,510 : x
2. Step 2: Convert to fraction form
   448,930/997,510 = 997,510/x
3. Step 3: Cross multiply
   448,930x = 997,510 × 997,510
4. Step 4: Simplify right side
   448,930x = 995,026,200,100
5. Step 5: Solve for x
   x = 995,026,200,100/448,930
6. Step 6: Final answer
   x = 2,216,439.53