Finding the Third Proportional to 2,615,306 and 5,643,467

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615,306 : 5,643,467 = 5,643,467 : x
2. Step 2: Convert to fraction form
   2,615,306/5,643,467 = 5,643,467/x
3. Step 3: Cross multiply
   2,615,306x = 5,643,467 × 5,643,467
4. Step 4: Simplify right side
   2,615,306x = 31,848,719,780,089
5. Step 5: Solve for x
   x = 31,848,719,780,089/2,615,306
6. Step 6: Final answer
   x = 12,177,817.73