Finding the Third Proportional to 459,114 and 991,999.50

Step by Step Solution

1. Step 1: Write the proportion equation
   459,114 : 991,999.50 = 991,999.50 : x
2. Step 2: Convert to fraction form
   459,114/991,999.50 = 991,999.50/x
3. Step 3: Cross multiply
   459,114x = 991,999.50 × 991,999.50
4. Step 4: Simplify right side
   459,114x = 984,063,008,000.25
5. Step 5: Solve for x
   x = 984,063,008,000.25/459,114
6. Step 6: Final answer
   x = 2,143,395.78