Finding the Third Proportional to 3,900.75 and 5,900.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,900.75 : 5,900.63 = 5,900.63 : x
2. Step 2: Convert to fraction form
   3,900.75/5,900.63 = 5,900.63/x
3. Step 3: Cross multiply
   3,900.75x = 5,900.63 × 5,900.63
4. Step 4: Simplify right side
   3,900.75x = 34,817,375.39
5. Step 5: Solve for x
   x = 34,817,375.39/3,900.75
6. Step 6: Final answer
   x = 8,925.82