Finding the Third Proportional to 2,142,870 and 2,910,249

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,870 : 2,910,249 = 2,910,249 : x
2. Step 2: Convert to fraction form
   2,142,870/2,910,249 = 2,910,249/x
3. Step 3: Cross multiply
   2,142,870x = 2,910,249 × 2,910,249
4. Step 4: Simplify right side
   2,142,870x = 8,469,549,242,001
5. Step 5: Solve for x
   x = 8,469,549,242,001/2,142,870
6. Step 6: Final answer
   x = 3,952,432.60