Finding the Third Proportional to 39,105,665 and 59,161,818

Step by Step Solution

1. Step 1: Write the proportion equation
   39,105,665 : 59,161,818 = 59,161,818 : x
2. Step 2: Convert to fraction form
   39,105,665/59,161,818 = 59,161,818/x
3. Step 3: Cross multiply
   39,105,665x = 59,161,818 × 59,161,818
4. Step 4: Simplify right side
   39,105,665x = 3,500,120,709,065,124
5. Step 5: Solve for x
   x = 3,500,120,709,065,124/39,105,665
6. Step 6: Final answer
   x = 89,504,185.88