Finding the Third Proportional to 2,561,474 and 5,520,196

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561,474 : 5,520,196 = 5,520,196 : x
2. Step 2: Convert to fraction form
   2,561,474/5,520,196 = 5,520,196/x
3. Step 3: Cross multiply
   2,561,474x = 5,520,196 × 5,520,196
4. Step 4: Simplify right side
   2,561,474x = 30,472,563,878,416
5. Step 5: Solve for x
   x = 30,472,563,878,416/2,561,474
6. Step 6: Final answer
   x = 11,896,495.49