Finding the Third Proportional to 780,002 and 1,687,936

Step by Step Solution

1. Step 1: Write the proportion equation
   780,002 : 1,687,936 = 1,687,936 : x
2. Step 2: Convert to fraction form
   780,002/1,687,936 = 1,687,936/x
3. Step 3: Cross multiply
   780,002x = 1,687,936 × 1,687,936
4. Step 4: Simplify right side
   780,002x = 2,849,127,940,096
5. Step 5: Solve for x
   x = 2,849,127,940,096/780,002
6. Step 6: Final answer
   x = 3,652,718.76