Finding the Third Proportional to 1,210,827 and 2,569,245

Step by Step Solution

1. Step 1: Write the proportion equation
   1,210,827 : 2,569,245 = 2,569,245 : x
2. Step 2: Convert to fraction form
   1,210,827/2,569,245 = 2,569,245/x
3. Step 3: Cross multiply
   1,210,827x = 2,569,245 × 2,569,245
4. Step 4: Simplify right side
   1,210,827x = 6,601,019,870,025
5. Step 5: Solve for x
   x = 6,601,019,870,025/1,210,827
6. Step 6: Final answer
   x = 5,451,662.27