Finding the Third Proportional to 65,062,138 and 86,739,845

Step by Step Solution

1. Step 1: Write the proportion equation
   65,062,138 : 86,739,845 = 86,739,845 : x
2. Step 2: Convert to fraction form
   65,062,138/86,739,845 = 86,739,845/x
3. Step 3: Cross multiply
   65,062,138x = 86,739,845 × 86,739,845
4. Step 4: Simplify right side
   65,062,138x = 7,523,800,710,624,025
5. Step 5: Solve for x
   x = 7,523,800,710,624,025/65,062,138
6. Step 6: Final answer
   x = 115,640,231.66