Finding the Third Proportional to 34,264 and 54,780

Step by Step Solution

1. Step 1: Write the proportion equation
   34,264 : 54,780 = 54,780 : x
2. Step 2: Convert to fraction form
   34,264/54,780 = 54,780/x
3. Step 3: Cross multiply
   34,264x = 54,780 × 54,780
4. Step 4: Simplify right side
   34,264x = 3,000,848,400
5. Step 5: Solve for x
   x = 3,000,848,400/34,264
6. Step 6: Final answer
   x = 87,580.21