Finding the Third Proportional to 51,722.50 and 79,087.75

Step by Step Solution

1. Step 1: Write the proportion equation
   51,722.50 : 79,087.75 = 79,087.75 : x
2. Step 2: Convert to fraction form
   51,722.50/79,087.75 = 79,087.75/x
3. Step 3: Cross multiply
   51,722.50x = 79,087.75 × 79,087.75
4. Step 4: Simplify right side
   51,722.50x = 6,254,872,200.06
5. Step 5: Solve for x
   x = 6,254,872,200.06/51,722.50
6. Step 6: Final answer
   x = 120,931.36