Finding the Third Proportional to 42.84 and 62.76

Step by Step Solution

1. Step 1: Write the proportion equation
   42.84 : 62.76 = 62.76 : x
2. Step 2: Convert to fraction form
   42.84/62.76 = 62.76/x
3. Step 3: Cross multiply
   42.84x = 62.76 × 62.76
4. Step 4: Simplify right side
   42.84x = 3,938.30
5. Step 5: Solve for x
   x = 3,938.30/42.84
6. Step 6: Final answer
   x = 91.93