Finding the Third Proportional to 191,910 and 268,364

Step by Step Solution

1. Step 1: Write the proportion equation
   191,910 : 268,364 = 268,364 : x
2. Step 2: Convert to fraction form
   191,910/268,364 = 268,364/x
3. Step 3: Cross multiply
   191,910x = 268,364 × 268,364
4. Step 4: Simplify right side
   191,910x = 72,019,236,496
5. Step 5: Solve for x
   x = 72,019,236,496/191,910
6. Step 6: Final answer
   x = 375,276.10