Finding the Third Proportional to 134,806 and 206,300

Step by Step Solution

1. Step 1: Write the proportion equation
   134,806 : 206,300 = 206,300 : x
2. Step 2: Convert to fraction form
   134,806/206,300 = 206,300/x
3. Step 3: Cross multiply
   134,806x = 206,300 × 206,300
4. Step 4: Simplify right side
   134,806x = 42,559,690,000
5. Step 5: Solve for x
   x = 42,559,690,000/134,806
6. Step 6: Final answer
   x = 315,710.65