Finding the Third Proportional to 3,663,698 and 7,831,588

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663,698 : 7,831,588 = 7,831,588 : x
2. Step 2: Convert to fraction form
   3,663,698/7,831,588 = 7,831,588/x
3. Step 3: Cross multiply
   3,663,698x = 7,831,588 × 7,831,588
4. Step 4: Simplify right side
   3,663,698x = 61,333,770,601,744
5. Step 5: Solve for x
   x = 61,333,770,601,744/3,663,698
6. Step 6: Final answer
   x = 16,740,946.06