Finding the Third Proportional to 3,590,464 and 7,740,800

Step by Step Solution

1. Step 1: Write the proportion equation
   3,590,464 : 7,740,800 = 7,740,800 : x
2. Step 2: Convert to fraction form
   3,590,464/7,740,800 = 7,740,800/x
3. Step 3: Cross multiply
   3,590,464x = 7,740,800 × 7,740,800
4. Step 4: Simplify right side
   3,590,464x = 59,919,984,640,000
5. Step 5: Solve for x
   x = 59,919,984,640,000/3,590,464
6. Step 6: Final answer
   x = 16,688,646.55