Finding the Third Proportional to 12,972.25 and 28,536.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,972.25 : 28,536.50 = 28,536.50 : x
2. Step 2: Convert to fraction form
   12,972.25/28,536.50 = 28,536.50/x
3. Step 3: Cross multiply
   12,972.25x = 28,536.50 × 28,536.50
4. Step 4: Simplify right side
   12,972.25x = 814,331,832.25
5. Step 5: Solve for x
   x = 814,331,832.25/12,972.25
6. Step 6: Final answer
   x = 62,774.91