Finding the Third Proportional to 191,754 and 300,820

Step by Step Solution

1. Step 1: Write the proportion equation
   191,754 : 300,820 = 300,820 : x
2. Step 2: Convert to fraction form
   191,754/300,820 = 300,820/x
3. Step 3: Cross multiply
   191,754x = 300,820 × 300,820
4. Step 4: Simplify right side
   191,754x = 90,492,672,400
5. Step 5: Solve for x
   x = 90,492,672,400/191,754
6. Step 6: Final answer
   x = 471,920.65