Finding the Third Proportional to 3,280,888 and 7,207,040

Step by Step Solution

1. Step 1: Write the proportion equation
   3,280,888 : 7,207,040 = 7,207,040 : x
2. Step 2: Convert to fraction form
   3,280,888/7,207,040 = 7,207,040/x
3. Step 3: Cross multiply
   3,280,888x = 7,207,040 × 7,207,040
4. Step 4: Simplify right side
   3,280,888x = 51,941,425,561,600
5. Step 5: Solve for x
   x = 51,941,425,561,600/3,280,888
6. Step 6: Final answer
   x = 15,831,514.38