Finding the Third Proportional to 38,920.50 and 57,557.25

Step by Step Solution

1. Step 1: Write the proportion equation
   38,920.50 : 57,557.25 = 57,557.25 : x
2. Step 2: Convert to fraction form
   38,920.50/57,557.25 = 57,557.25/x
3. Step 3: Cross multiply
   38,920.50x = 57,557.25 × 57,557.25
4. Step 4: Simplify right side
   38,920.50x = 3,312,837,027.56
5. Step 5: Solve for x
   x = 3,312,837,027.56/38,920.50
6. Step 6: Final answer
   x = 85,118.05