Finding the Third Proportional to 1,038,584 and 2,159,724

Step by Step Solution

1. Step 1: Write the proportion equation
   1,038,584 : 2,159,724 = 2,159,724 : x
2. Step 2: Convert to fraction form
   1,038,584/2,159,724 = 2,159,724/x
3. Step 3: Cross multiply
   1,038,584x = 2,159,724 × 2,159,724
4. Step 4: Simplify right side
   1,038,584x = 4,664,407,756,176
5. Step 5: Solve for x
   x = 4,664,407,756,176/1,038,584
6. Step 6: Final answer
   x = 4,491,122.29