Finding the Third Proportional to 2,680,472 and 5,780,816

Step by Step Solution

1. Step 1: Write the proportion equation
   2,680,472 : 5,780,816 = 5,780,816 : x
2. Step 2: Convert to fraction form
   2,680,472/5,780,816 = 5,780,816/x
3. Step 3: Cross multiply
   2,680,472x = 5,780,816 × 5,780,816
4. Step 4: Simplify right side
   2,680,472x = 33,417,833,625,856
5. Step 5: Solve for x
   x = 33,417,833,625,856/2,680,472
6. Step 6: Final answer
   x = 12,467,145.20