Finding the Third Proportional to 72,262.13 and 77,260.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,262.13 : 77,260.50 = 77,260.50 : x
2. Step 2: Convert to fraction form
   72,262.13/77,260.50 = 77,260.50/x
3. Step 3: Cross multiply
   72,262.13x = 77,260.50 × 77,260.50
4. Step 4: Simplify right side
   72,262.13x = 5,969,184,860.25
5. Step 5: Solve for x
   x = 5,969,184,860.25/72,262.13
6. Step 6: Final answer
   x = 82,604.61