Finding the Third Proportional to 821,955 and 1,289,730

Step by Step Solution

1. Step 1: Write the proportion equation
   821,955 : 1,289,730 = 1,289,730 : x
2. Step 2: Convert to fraction form
   821,955/1,289,730 = 1,289,730/x
3. Step 3: Cross multiply
   821,955x = 1,289,730 × 1,289,730
4. Step 4: Simplify right side
   821,955x = 1,663,403,472,900
5. Step 5: Solve for x
   x = 1,663,403,472,900/821,955
6. Step 6: Final answer
   x = 2,023,715.99