Finding the Third Proportional to 59,926.50 and 129,196.69

Step by Step Solution

1. Step 1: Write the proportion equation
   59,926.50 : 129,196.69 = 129,196.69 : x
2. Step 2: Convert to fraction form
   59,926.50/129,196.69 = 129,196.69/x
3. Step 3: Cross multiply
   59,926.50x = 129,196.69 × 129,196.69
4. Step 4: Simplify right side
   59,926.50x = 16,691,784,060.97
5. Step 5: Solve for x
   x = 16,691,784,060.97/59,926.50
6. Step 6: Final answer
   x = 278,537.61