Finding the Third Proportional to 646,552.50 and 1,405,020

Step by Step Solution

1. Step 1: Write the proportion equation
   646,552.50 : 1,405,020 = 1,405,020 : x
2. Step 2: Convert to fraction form
   646,552.50/1,405,020 = 1,405,020/x
3. Step 3: Cross multiply
   646,552.50x = 1,405,020 × 1,405,020
4. Step 4: Simplify right side
   646,552.50x = 1,974,081,200,400
5. Step 5: Solve for x
   x = 1,974,081,200,400/646,552.50
6. Step 6: Final answer
   x = 3,053,241.93