Finding the Third Proportional to 1,038,580 and 2,159,716

Step by Step Solution

1. Step 1: Write the proportion equation
   1,038,580 : 2,159,716 = 2,159,716 : x
2. Step 2: Convert to fraction form
   1,038,580/2,159,716 = 2,159,716/x
3. Step 3: Cross multiply
   1,038,580x = 2,159,716 × 2,159,716
4. Step 4: Simplify right side
   1,038,580x = 4,664,373,200,656
5. Step 5: Solve for x
   x = 4,664,373,200,656/1,038,580
6. Step 6: Final answer
   x = 4,491,106.32