Finding the Third Proportional to 2,586,209 and 5,620,074

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586,209 : 5,620,074 = 5,620,074 : x
2. Step 2: Convert to fraction form
   2,586,209/5,620,074 = 5,620,074/x
3. Step 3: Cross multiply
   2,586,209x = 5,620,074 × 5,620,074
4. Step 4: Simplify right side
   2,586,209x = 31,585,231,765,476
5. Step 5: Solve for x
   x = 31,585,231,765,476/2,586,209
6. Step 6: Final answer
   x = 12,212,946.35