Finding the Third Proportional to 13,072.50 and 28,426.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,072.50 : 28,426.50 = 28,426.50 : x
2. Step 2: Convert to fraction form
   13,072.50/28,426.50 = 28,426.50/x
3. Step 3: Cross multiply
   13,072.50x = 28,426.50 × 28,426.50
4. Step 4: Simplify right side
   13,072.50x = 808,065,902.25
5. Step 5: Solve for x
   x = 808,065,902.25/13,072.50
6. Step 6: Final answer
   x = 61,814.18