Finding the Third Proportional to 191,668.50 and 300,690

Step by Step Solution

1. Step 1: Write the proportion equation
   191,668.50 : 300,690 = 300,690 : x
2. Step 2: Convert to fraction form
   191,668.50/300,690 = 300,690/x
3. Step 3: Cross multiply
   191,668.50x = 300,690 × 300,690
4. Step 4: Simplify right side
   191,668.50x = 90,414,476,100
5. Step 5: Solve for x
   x = 90,414,476,100/191,668.50
6. Step 6: Final answer
   x = 471,723.19