Finding the Third Proportional to 31,352 and 67,078

Step by Step Solution

1. Step 1: Write the proportion equation
   31,352 : 67,078 = 67,078 : x
2. Step 2: Convert to fraction form
   31,352/67,078 = 67,078/x
3. Step 3: Cross multiply
   31,352x = 67,078 × 67,078
4. Step 4: Simplify right side
   31,352x = 4,499,458,084
5. Step 5: Solve for x
   x = 4,499,458,084/31,352
6. Step 6: Final answer
   x = 143,514.23