Finding the Third Proportional to 65,061,938 and 86,739,555

Step by Step Solution

1. Step 1: Write the proportion equation
   65,061,938 : 86,739,555 = 86,739,555 : x
2. Step 2: Convert to fraction form
   65,061,938/86,739,555 = 86,739,555/x
3. Step 3: Cross multiply
   65,061,938x = 86,739,555 × 86,739,555
4. Step 4: Simplify right side
   65,061,938x = 7,523,750,401,598,025
5. Step 5: Solve for x
   x = 7,523,750,401,598,025/65,061,938
6. Step 6: Final answer
   x = 115,639,813.89