Finding the Third Proportional to 30,259 and 70,315

Step by Step Solution

1. Step 1: Write the proportion equation
   30,259 : 70,315 = 70,315 : x
2. Step 2: Convert to fraction form
   30,259/70,315 = 70,315/x
3. Step 3: Cross multiply
   30,259x = 70,315 × 70,315
4. Step 4: Simplify right side
   30,259x = 4,944,199,225
5. Step 5: Solve for x
   x = 4,944,199,225/30,259
6. Step 6: Final answer
   x = 163,395.99