Finding the Third Proportional to 30,715 and 62,726

Step by Step Solution

1. Step 1: Write the proportion equation
   30,715 : 62,726 = 62,726 : x
2. Step 2: Convert to fraction form
   30,715/62,726 = 62,726/x
3. Step 3: Cross multiply
   30,715x = 62,726 × 62,726
4. Step 4: Simplify right side
   30,715x = 3,934,551,076
5. Step 5: Solve for x
   x = 3,934,551,076/30,715
6. Step 6: Final answer
   x = 128,098.68