Finding the Third Proportional to 30,448 and 65,392

Step by Step Solution

1. Step 1: Write the proportion equation
   30,448 : 65,392 = 65,392 : x
2. Step 2: Convert to fraction form
   30,448/65,392 = 65,392/x
3. Step 3: Cross multiply
   30,448x = 65,392 × 65,392
4. Step 4: Simplify right side
   30,448x = 4,276,113,664
5. Step 5: Solve for x
   x = 4,276,113,664/30,448
6. Step 6: Final answer
   x = 140,439.89