Finding the Third Proportional to 5,640,738 and 8,593,299

Step by Step Solution

1. Step 1: Write the proportion equation
   5,640,738 : 8,593,299 = 8,593,299 : x
2. Step 2: Convert to fraction form
   5,640,738/8,593,299 = 8,593,299/x
3. Step 3: Cross multiply
   5,640,738x = 8,593,299 × 8,593,299
4. Step 4: Simplify right side
   5,640,738x = 73,844,787,703,401
5. Step 5: Solve for x
   x = 73,844,787,703,401/5,640,738
6. Step 6: Final answer
   x = 13,091,334.45