Finding the Third Proportional to 64,262 and 136,300

Step by Step Solution

1. Step 1: Write the proportion equation
   64,262 : 136,300 = 136,300 : x
2. Step 2: Convert to fraction form
   64,262/136,300 = 136,300/x
3. Step 3: Cross multiply
   64,262x = 136,300 × 136,300
4. Step 4: Simplify right side
   64,262x = 18,577,690,000
5. Step 5: Solve for x
   x = 18,577,690,000/64,262
6. Step 6: Final answer
   x = 289,092.93