Finding the Third Proportional to 2,678,416 and 5,780,236

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678,416 : 5,780,236 = 5,780,236 : x
2. Step 2: Convert to fraction form
   2,678,416/5,780,236 = 5,780,236/x
3. Step 3: Cross multiply
   2,678,416x = 5,780,236 × 5,780,236
4. Step 4: Simplify right side
   2,678,416x = 33,411,128,215,696
5. Step 5: Solve for x
   x = 33,411,128,215,696/2,678,416
6. Step 6: Final answer
   x = 12,474,211.70