Finding the Third Proportional to 38,880 and 57,499.88

Step by Step Solution

1. Step 1: Write the proportion equation
   38,880 : 57,499.88 = 57,499.88 : x
2. Step 2: Convert to fraction form
   38,880/57,499.88 = 57,499.88/x
3. Step 3: Cross multiply
   38,880x = 57,499.88 × 57,499.88
4. Step 4: Simplify right side
   38,880x = 3,306,235,625.02
5. Step 5: Solve for x
   x = 3,306,235,625.02/38,880
6. Step 6: Final answer
   x = 85,036.92