Finding the Third Proportional to 1,720,203 and 2,405,991

Step by Step Solution

1. Step 1: Write the proportion equation
   1,720,203 : 2,405,991 = 2,405,991 : x
2. Step 2: Convert to fraction form
   1,720,203/2,405,991 = 2,405,991/x
3. Step 3: Cross multiply
   1,720,203x = 2,405,991 × 2,405,991
4. Step 4: Simplify right side
   1,720,203x = 5,788,792,692,081
5. Step 5: Solve for x
   x = 5,788,792,692,081/1,720,203
6. Step 6: Final answer
   x = 3,365,179.98