Finding the Third Proportional to 30,916 and 45,078

Step by Step Solution

1. Step 1: Write the proportion equation
   30,916 : 45,078 = 45,078 : x
2. Step 2: Convert to fraction form
   30,916/45,078 = 45,078/x
3. Step 3: Cross multiply
   30,916x = 45,078 × 45,078
4. Step 4: Simplify right side
   30,916x = 2,032,026,084
5. Step 5: Solve for x
   x = 2,032,026,084/30,916
6. Step 6: Final answer
   x = 65,727.33