Finding the Third Proportional to 34,840 and 67,928

Step by Step Solution

1. Step 1: Write the proportion equation
   34,840 : 67,928 = 67,928 : x
2. Step 2: Convert to fraction form
   34,840/67,928 = 67,928/x
3. Step 3: Cross multiply
   34,840x = 67,928 × 67,928
4. Step 4: Simplify right side
   34,840x = 4,614,213,184
5. Step 5: Solve for x
   x = 4,614,213,184/34,840
6. Step 6: Final answer
   x = 132,440.10