Finding the Third Proportional to 2,605,251 and 5,490,438

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605,251 : 5,490,438 = 5,490,438 : x
2. Step 2: Convert to fraction form
   2,605,251/5,490,438 = 5,490,438/x
3. Step 3: Cross multiply
   2,605,251x = 5,490,438 × 5,490,438
4. Step 4: Simplify right side
   2,605,251x = 30,144,909,431,844
5. Step 5: Solve for x
   x = 30,144,909,431,844/2,605,251
6. Step 6: Final answer
   x = 11,570,827.31