Finding the Third Proportional to 5,607,490 and 8,401,871

Step by Step Solution

1. Step 1: Write the proportion equation
   5,607,490 : 8,401,871 = 8,401,871 : x
2. Step 2: Convert to fraction form
   5,607,490/8,401,871 = 8,401,871/x
3. Step 3: Cross multiply
   5,607,490x = 8,401,871 × 8,401,871
4. Step 4: Simplify right side
   5,607,490x = 70,591,436,300,641
5. Step 5: Solve for x
   x = 70,591,436,300,641/5,607,490
6. Step 6: Final answer
   x = 12,588,776.14