Finding the Third Proportional to 65,367 and 72,307.69

Step by Step Solution

1. Step 1: Write the proportion equation
   65,367 : 72,307.69 = 72,307.69 : x
2. Step 2: Convert to fraction form
   65,367/72,307.69 = 72,307.69/x
3. Step 3: Cross multiply
   65,367x = 72,307.69 × 72,307.69
4. Step 4: Simplify right side
   65,367x = 5,228,401,671.60
5. Step 5: Solve for x
   x = 5,228,401,671.60/65,367
6. Step 6: Final answer
   x = 79,985.34