Finding the Third Proportional to 2,561,585 and 5,503,061

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561,585 : 5,503,061 = 5,503,061 : x
2. Step 2: Convert to fraction form
   2,561,585/5,503,061 = 5,503,061/x
3. Step 3: Cross multiply
   2,561,585x = 5,503,061 × 5,503,061
4. Step 4: Simplify right side
   2,561,585x = 30,283,680,369,721
5. Step 5: Solve for x
   x = 30,283,680,369,721/2,561,585
6. Step 6: Final answer
   x = 11,822,243.01