Finding the Third Proportional to 21,628 and 34,700

Step by Step Solution

1. Step 1: Write the proportion equation
   21,628 : 34,700 = 34,700 : x
2. Step 2: Convert to fraction form
   21,628/34,700 = 34,700/x
3. Step 3: Cross multiply
   21,628x = 34,700 × 34,700
4. Step 4: Simplify right side
   21,628x = 1,204,090,000
5. Step 5: Solve for x
   x = 1,204,090,000/21,628
6. Step 6: Final answer
   x = 55,672.74