Finding the Third Proportional to 11,178 and 27,229.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,178 : 27,229.50 = 27,229.50 : x
2. Step 2: Convert to fraction form
   11,178/27,229.50 = 27,229.50/x
3. Step 3: Cross multiply
   11,178x = 27,229.50 × 27,229.50
4. Step 4: Simplify right side
   11,178x = 741,445,670.25
5. Step 5: Solve for x
   x = 741,445,670.25/11,178
6. Step 6: Final answer
   x = 66,330.80