Finding the Third Proportional to 488,103.75 and 999,990

Step by Step Solution

1. Step 1: Write the proportion equation
   488,103.75 : 999,990 = 999,990 : x
2. Step 2: Convert to fraction form
   488,103.75/999,990 = 999,990/x
3. Step 3: Cross multiply
   488,103.75x = 999,990 × 999,990
4. Step 4: Simplify right side
   488,103.75x = 999,980,000,100
5. Step 5: Solve for x
   x = 999,980,000,100/488,103.75
6. Step 6: Final answer
   x = 2,048,703.79