Finding the Third Proportional to 122,806.50 and 187,491

Step by Step Solution

1. Step 1: Write the proportion equation
   122,806.50 : 187,491 = 187,491 : x
2. Step 2: Convert to fraction form
   122,806.50/187,491 = 187,491/x
3. Step 3: Cross multiply
   122,806.50x = 187,491 × 187,491
4. Step 4: Simplify right side
   122,806.50x = 35,152,875,081
5. Step 5: Solve for x
   x = 35,152,875,081/122,806.50
6. Step 6: Final answer
   x = 286,246.05