Finding the Third Proportional to 485,089.75 and 1,020,448.50

Step by Step Solution

1. Step 1: Write the proportion equation
   485,089.75 : 1,020,448.50 = 1,020,448.50 : x
2. Step 2: Convert to fraction form
   485,089.75/1,020,448.50 = 1,020,448.50/x
3. Step 3: Cross multiply
   485,089.75x = 1,020,448.50 × 1,020,448.50
4. Step 4: Simplify right side
   485,089.75x = 1,041,315,141,152.25
5. Step 5: Solve for x
   x = 1,041,315,141,152.25/485,089.75
6. Step 6: Final answer
   x = 2,146,644.29