Finding the Third Proportional to 1,002,861 and 2,145,681

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002,861 : 2,145,681 = 2,145,681 : x
2. Step 2: Convert to fraction form
   1,002,861/2,145,681 = 2,145,681/x
3. Step 3: Cross multiply
   1,002,861x = 2,145,681 × 2,145,681
4. Step 4: Simplify right side
   1,002,861x = 4,603,946,953,761
5. Step 5: Solve for x
   x = 4,603,946,953,761/1,002,861
6. Step 6: Final answer
   x = 4,590,812.64