Finding the Third Proportional to 54,759 and 78,250.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,759 : 78,250.50 = 78,250.50 : x
2. Step 2: Convert to fraction form
   54,759/78,250.50 = 78,250.50/x
3. Step 3: Cross multiply
   54,759x = 78,250.50 × 78,250.50
4. Step 4: Simplify right side
   54,759x = 6,123,140,750.25
5. Step 5: Solve for x
   x = 6,123,140,750.25/54,759
6. Step 6: Final answer
   x = 111,819.81