Finding the Third Proportional to 2,070,400 and 3,171,129

Step by Step Solution

1. Step 1: Write the proportion equation
   2,070,400 : 3,171,129 = 3,171,129 : x
2. Step 2: Convert to fraction form
   2,070,400/3,171,129 = 3,171,129/x
3. Step 3: Cross multiply
   2,070,400x = 3,171,129 × 3,171,129
4. Step 4: Simplify right side
   2,070,400x = 10,056,059,134,641
5. Step 5: Solve for x
   x = 10,056,059,134,641/2,070,400
6. Step 6: Final answer
   x = 4,857,061.02