Finding the Third Proportional to 3,493,968 and 7,407,840

Step by Step Solution

1. Step 1: Write the proportion equation
   3,493,968 : 7,407,840 = 7,407,840 : x
2. Step 2: Convert to fraction form
   3,493,968/7,407,840 = 7,407,840/x
3. Step 3: Cross multiply
   3,493,968x = 7,407,840 × 7,407,840
4. Step 4: Simplify right side
   3,493,968x = 54,876,093,465,600
5. Step 5: Solve for x
   x = 54,876,093,465,600/3,493,968
6. Step 6: Final answer
   x = 15,705,951.93