Finding the Third Proportional to 51,659 and 79,018.50

Step by Step Solution

1. Step 1: Write the proportion equation
   51,659 : 79,018.50 = 79,018.50 : x
2. Step 2: Convert to fraction form
   51,659/79,018.50 = 79,018.50/x
3. Step 3: Cross multiply
   51,659x = 79,018.50 × 79,018.50
4. Step 4: Simplify right side
   51,659x = 6,243,923,342.25
5. Step 5: Solve for x
   x = 6,243,923,342.25/51,659
6. Step 6: Final answer
   x = 120,868.06