Finding the Third Proportional to 7,074 and 12,445.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,074 : 12,445.50 = 12,445.50 : x
2. Step 2: Convert to fraction form
   7,074/12,445.50 = 12,445.50/x
3. Step 3: Cross multiply
   7,074x = 12,445.50 × 12,445.50
4. Step 4: Simplify right side
   7,074x = 154,890,470.25
5. Step 5: Solve for x
   x = 154,890,470.25/7,074
6. Step 6: Final answer
   x = 21,895.74