Finding the Third Proportional to 465,988.50 and 999,945

Step by Step Solution

1. Step 1: Write the proportion equation
   465,988.50 : 999,945 = 999,945 : x
2. Step 2: Convert to fraction form
   465,988.50/999,945 = 999,945/x
3. Step 3: Cross multiply
   465,988.50x = 999,945 × 999,945
4. Step 4: Simplify right side
   465,988.50x = 999,890,003,025
5. Step 5: Solve for x
   x = 999,890,003,025/465,988.50
6. Step 6: Final answer
   x = 2,145,739.65