Finding the Third Proportional to 12,921.75 and 28,298.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,921.75 : 28,298.25 = 28,298.25 : x
2. Step 2: Convert to fraction form
   12,921.75/28,298.25 = 28,298.25/x
3. Step 3: Cross multiply
   12,921.75x = 28,298.25 × 28,298.25
4. Step 4: Simplify right side
   12,921.75x = 800,790,953.06
5. Step 5: Solve for x
   x = 800,790,953.06/12,921.75
6. Step 6: Final answer
   x = 61,972.33