Finding the Third Proportional to 12,190.50 and 28,856.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,190.50 : 28,856.25 = 28,856.25 : x
2. Step 2: Convert to fraction form
   12,190.50/28,856.25 = 28,856.25/x
3. Step 3: Cross multiply
   12,190.50x = 28,856.25 × 28,856.25
4. Step 4: Simplify right side
   12,190.50x = 832,683,164.06
5. Step 5: Solve for x
   x = 832,683,164.06/12,190.50
6. Step 6: Final answer
   x = 68,305.91