Finding the Third Proportional to 863,426 and 1,340,355

Step by Step Solution

1. Step 1: Write the proportion equation
   863,426 : 1,340,355 = 1,340,355 : x
2. Step 2: Convert to fraction form
   863,426/1,340,355 = 1,340,355/x
3. Step 3: Cross multiply
   863,426x = 1,340,355 × 1,340,355
4. Step 4: Simplify right side
   863,426x = 1,796,551,526,025
5. Step 5: Solve for x
   x = 1,796,551,526,025/863,426
6. Step 6: Final answer
   x = 2,080,724.38