Finding the Third Proportional to 1,385,328 and 2,078,040

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385,328 : 2,078,040 = 2,078,040 : x
2. Step 2: Convert to fraction form
   1,385,328/2,078,040 = 2,078,040/x
3. Step 3: Cross multiply
   1,385,328x = 2,078,040 × 2,078,040
4. Step 4: Simplify right side
   1,385,328x = 4,318,250,241,600
5. Step 5: Solve for x
   x = 4,318,250,241,600/1,385,328
6. Step 6: Final answer
   x = 3,117,132.00