Finding the Third Proportional to 29,491.50 and 61,717.50

Step by Step Solution

1. Step 1: Write the proportion equation
   29,491.50 : 61,717.50 = 61,717.50 : x
2. Step 2: Convert to fraction form
   29,491.50/61,717.50 = 61,717.50/x
3. Step 3: Cross multiply
   29,491.50x = 61,717.50 × 61,717.50
4. Step 4: Simplify right side
   29,491.50x = 3,809,049,806.25
5. Step 5: Solve for x
   x = 3,809,049,806.25/29,491.50
6. Step 6: Final answer
   x = 129,157.55