Finding the Third Proportional to 30,726 and 67,012

Step by Step Solution

1. Step 1: Write the proportion equation
   30,726 : 67,012 = 67,012 : x
2. Step 2: Convert to fraction form
   30,726/67,012 = 67,012/x
3. Step 3: Cross multiply
   30,726x = 67,012 × 67,012
4. Step 4: Simplify right side
   30,726x = 4,490,608,144
5. Step 5: Solve for x
   x = 4,490,608,144/30,726
6. Step 6: Final answer
   x = 146,150.11