Finding the Third Proportional to 5,561,685 and 8,607,150

Step by Step Solution

1. Step 1: Write the proportion equation
   5,561,685 : 8,607,150 = 8,607,150 : x
2. Step 2: Convert to fraction form
   5,561,685/8,607,150 = 8,607,150/x
3. Step 3: Cross multiply
   5,561,685x = 8,607,150 × 8,607,150
4. Step 4: Simplify right side
   5,561,685x = 74,083,031,122,500
5. Step 5: Solve for x
   x = 74,083,031,122,500/5,561,685
6. Step 6: Final answer
   x = 13,320,249.37