Finding the Third Proportional to 373,993 and 770,040

Step by Step Solution

1. Step 1: Write the proportion equation
   373,993 : 770,040 = 770,040 : x
2. Step 2: Convert to fraction form
   373,993/770,040 = 770,040/x
3. Step 3: Cross multiply
   373,993x = 770,040 × 770,040
4. Step 4: Simplify right side
   373,993x = 592,961,601,600
5. Step 5: Solve for x
   x = 592,961,601,600/373,993
6. Step 6: Final answer
   x = 1,585,488.50