Finding the Third Proportional to 1,197,821 and 2,570,890

Step by Step Solution

1. Step 1: Write the proportion equation
   1,197,821 : 2,570,890 = 2,570,890 : x
2. Step 2: Convert to fraction form
   1,197,821/2,570,890 = 2,570,890/x
3. Step 3: Cross multiply
   1,197,821x = 2,570,890 × 2,570,890
4. Step 4: Simplify right side
   1,197,821x = 6,609,475,392,100
5. Step 5: Solve for x
   x = 6,609,475,392,100/1,197,821
6. Step 6: Final answer
   x = 5,517,915.78