Finding the Third Proportional to 191,515.50 and 303,111

Step by Step Solution

1. Step 1: Write the proportion equation
   191,515.50 : 303,111 = 303,111 : x
2. Step 2: Convert to fraction form
   191,515.50/303,111 = 303,111/x
3. Step 3: Cross multiply
   191,515.50x = 303,111 × 303,111
4. Step 4: Simplify right side
   191,515.50x = 91,876,278,321
5. Step 5: Solve for x
   x = 91,876,278,321/191,515.50
6. Step 6: Final answer
   x = 479,732.86