Finding the Third Proportional to 34,608 and 54,216.75

Step by Step Solution

1. Step 1: Write the proportion equation
   34,608 : 54,216.75 = 54,216.75 : x
2. Step 2: Convert to fraction form
   34,608/54,216.75 = 54,216.75/x
3. Step 3: Cross multiply
   34,608x = 54,216.75 × 54,216.75
4. Step 4: Simplify right side
   34,608x = 2,939,455,980.56
5. Step 5: Solve for x
   x = 2,939,455,980.56/34,608
6. Step 6: Final answer
   x = 84,935.74