Finding the Third Proportional to 30,797.50 and 42,908.75

Step by Step Solution

1. Step 1: Write the proportion equation
   30,797.50 : 42,908.75 = 42,908.75 : x
2. Step 2: Convert to fraction form
   30,797.50/42,908.75 = 42,908.75/x
3. Step 3: Cross multiply
   30,797.50x = 42,908.75 × 42,908.75
4. Step 4: Simplify right side
   30,797.50x = 1,841,160,826.56
5. Step 5: Solve for x
   x = 1,841,160,826.56/30,797.50
6. Step 6: Final answer
   x = 59,782.80