Finding the Third Proportional to 54,615 and 78,925.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,615 : 78,925.50 = 78,925.50 : x
2. Step 2: Convert to fraction form
   54,615/78,925.50 = 78,925.50/x
3. Step 3: Cross multiply
   54,615x = 78,925.50 × 78,925.50
4. Step 4: Simplify right side
   54,615x = 6,229,234,550.25
5. Step 5: Solve for x
   x = 6,229,234,550.25/54,615
6. Step 6: Final answer
   x = 114,057.21