Finding the Third Proportional to 64,492.88 and 133,540.31

Step by Step Solution

1. Step 1: Write the proportion equation
   64,492.88 : 133,540.31 = 133,540.31 : x
2. Step 2: Convert to fraction form
   64,492.88/133,540.31 = 133,540.31/x
3. Step 3: Cross multiply
   64,492.88x = 133,540.31 × 133,540.31
4. Step 4: Simplify right side
   64,492.88x = 17,833,015,062.60
5. Step 5: Solve for x
   x = 17,833,015,062.60/64,492.88
6. Step 6: Final answer
   x = 276,511.40