Finding the Third Proportional to 2,609,240 and 5,291,876

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609,240 : 5,291,876 = 5,291,876 : x
2. Step 2: Convert to fraction form
   2,609,240/5,291,876 = 5,291,876/x
3. Step 3: Cross multiply
   2,609,240x = 5,291,876 × 5,291,876
4. Step 4: Simplify right side
   2,609,240x = 28,003,951,599,376
5. Step 5: Solve for x
   x = 28,003,951,599,376/2,609,240
6. Step 6: Final answer
   x = 10,732,608.58