Finding the Third Proportional to 1,215,318 and 2,619,046

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,318 : 2,619,046 = 2,619,046 : x
2. Step 2: Convert to fraction form
   1,215,318/2,619,046 = 2,619,046/x
3. Step 3: Cross multiply
   1,215,318x = 2,619,046 × 2,619,046
4. Step 4: Simplify right side
   1,215,318x = 6,859,401,950,116
5. Step 5: Solve for x
   x = 6,859,401,950,116/1,215,318
6. Step 6: Final answer
   x = 5,644,121.09