Finding the Third Proportional to 3,452,190 and 5,178,288

Step by Step Solution

1. Step 1: Write the proportion equation
   3,452,190 : 5,178,288 = 5,178,288 : x
2. Step 2: Convert to fraction form
   3,452,190/5,178,288 = 5,178,288/x
3. Step 3: Cross multiply
   3,452,190x = 5,178,288 × 5,178,288
4. Step 4: Simplify right side
   3,452,190x = 26,814,666,610,944
5. Step 5: Solve for x
   x = 26,814,666,610,944/3,452,190
6. Step 6: Final answer
   x = 7,767,436.50