Finding the Third Proportional to 485,619 and 990,514.50

Step by Step Solution

1. Step 1: Write the proportion equation
   485,619 : 990,514.50 = 990,514.50 : x
2. Step 2: Convert to fraction form
   485,619/990,514.50 = 990,514.50/x
3. Step 3: Cross multiply
   485,619x = 990,514.50 × 990,514.50
4. Step 4: Simplify right side
   485,619x = 981,118,974,710.25
5. Step 5: Solve for x
   x = 981,118,974,710.25/485,619
6. Step 6: Final answer
   x = 2,020,347.17