Finding the Third Proportional to 459,110.50 and 991,992

Step by Step Solution

1. Step 1: Write the proportion equation
   459,110.50 : 991,992 = 991,992 : x
2. Step 2: Convert to fraction form
   459,110.50/991,992 = 991,992/x
3. Step 3: Cross multiply
   459,110.50x = 991,992 × 991,992
4. Step 4: Simplify right side
   459,110.50x = 984,048,128,064
5. Step 5: Solve for x
   x = 984,048,128,064/459,110.50
6. Step 6: Final answer
   x = 2,143,379.71