Finding the Third Proportional to 1,578,074 and 3,451,380

Step by Step Solution

1. Step 1: Write the proportion equation
   1,578,074 : 3,451,380 = 3,451,380 : x
2. Step 2: Convert to fraction form
   1,578,074/3,451,380 = 3,451,380/x
3. Step 3: Cross multiply
   1,578,074x = 3,451,380 × 3,451,380
4. Step 4: Simplify right side
   1,578,074x = 11,912,023,904,400
5. Step 5: Solve for x
   x = 11,912,023,904,400/1,578,074
6. Step 6: Final answer
   x = 7,548,457.11