Finding the Third Proportional to 12,487.50 and 14,485.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,487.50 : 14,485.50 = 14,485.50 : x
2. Step 2: Convert to fraction form
   12,487.50/14,485.50 = 14,485.50/x
3. Step 3: Cross multiply
   12,487.50x = 14,485.50 × 14,485.50
4. Step 4: Simplify right side
   12,487.50x = 209,829,710.25
5. Step 5: Solve for x
   x = 209,829,710.25/12,487.50
6. Step 6: Final answer
   x = 16,803.18