Finding the Third Proportional to 1,038,577 and 2,159,709

Step by Step Solution

1. Step 1: Write the proportion equation
   1,038,577 : 2,159,709 = 2,159,709 : x
2. Step 2: Convert to fraction form
   1,038,577/2,159,709 = 2,159,709/x
3. Step 3: Cross multiply
   1,038,577x = 2,159,709 × 2,159,709
4. Step 4: Simplify right side
   1,038,577x = 4,664,342,964,681
5. Step 5: Solve for x
   x = 4,664,342,964,681/1,038,577
6. Step 6: Final answer
   x = 4,491,090.18