Finding the Third Proportional to 2,556,199 and 5,601,269

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556,199 : 5,601,269 = 5,601,269 : x
2. Step 2: Convert to fraction form
   2,556,199/5,601,269 = 5,601,269/x
3. Step 3: Cross multiply
   2,556,199x = 5,601,269 × 5,601,269
4. Step 4: Simplify right side
   2,556,199x = 31,374,214,410,361
5. Step 5: Solve for x
   x = 31,374,214,410,361/2,556,199
6. Step 6: Final answer
   x = 12,273,776.19