Finding the Third Proportional to 1,578,134 and 3,451,576

Step by Step Solution

1. Step 1: Write the proportion equation
   1,578,134 : 3,451,576 = 3,451,576 : x
2. Step 2: Convert to fraction form
   1,578,134/3,451,576 = 3,451,576/x
3. Step 3: Cross multiply
   1,578,134x = 3,451,576 × 3,451,576
4. Step 4: Simplify right side
   1,578,134x = 11,913,376,883,776
5. Step 5: Solve for x
   x = 11,913,376,883,776/1,578,134
6. Step 6: Final answer
   x = 7,549,027.45