Finding the Third Proportional to 5,607,488 and 8,401,868

Step by Step Solution

1. Step 1: Write the proportion equation
   5,607,488 : 8,401,868 = 8,401,868 : x
2. Step 2: Convert to fraction form
   5,607,488/8,401,868 = 8,401,868/x
3. Step 3: Cross multiply
   5,607,488x = 8,401,868 × 8,401,868
4. Step 4: Simplify right side
   5,607,488x = 70,591,385,889,424
5. Step 5: Solve for x
   x = 70,591,385,889,424/5,607,488
6. Step 6: Final answer
   x = 12,588,771.64