Finding the Third Proportional to 42,881.25 and 57,286.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,881.25 : 57,286.50 = 57,286.50 : x
2. Step 2: Convert to fraction form
   42,881.25/57,286.50 = 57,286.50/x
3. Step 3: Cross multiply
   42,881.25x = 57,286.50 × 57,286.50
4. Step 4: Simplify right side
   42,881.25x = 3,281,743,082.25
5. Step 5: Solve for x
   x = 3,281,743,082.25/42,881.25
6. Step 6: Final answer
   x = 76,530.96