Finding the Third Proportional to 61,061 and 128,682

Step by Step Solution

1. Step 1: Write the proportion equation
   61,061 : 128,682 = 128,682 : x
2. Step 2: Convert to fraction form
   61,061/128,682 = 128,682/x
3. Step 3: Cross multiply
   61,061x = 128,682 × 128,682
4. Step 4: Simplify right side
   61,061x = 16,559,057,124
5. Step 5: Solve for x
   x = 16,559,057,124/61,061
6. Step 6: Final answer
   x = 271,188.76