Finding the Third Proportional to 1,578,137 and 3,451,580

Step by Step Solution

1. Step 1: Write the proportion equation
   1,578,137 : 3,451,580 = 3,451,580 : x
2. Step 2: Convert to fraction form
   1,578,137/3,451,580 = 3,451,580/x
3. Step 3: Cross multiply
   1,578,137x = 3,451,580 × 3,451,580
4. Step 4: Simplify right side
   1,578,137x = 11,913,404,496,400
5. Step 5: Solve for x
   x = 11,913,404,496,400/1,578,137
6. Step 6: Final answer
   x = 7,549,030.60