Finding the Third Proportional to 30,718.13 and 65,706.75

Step by Step Solution

1. Step 1: Write the proportion equation
   30,718.13 : 65,706.75 = 65,706.75 : x
2. Step 2: Convert to fraction form
   30,718.13/65,706.75 = 65,706.75/x
3. Step 3: Cross multiply
   30,718.13x = 65,706.75 × 65,706.75
4. Step 4: Simplify right side
   30,718.13x = 4,317,376,995.56
5. Step 5: Solve for x
   x = 4,317,376,995.56/30,718.13
6. Step 6: Final answer
   x = 140,548.19