Finding the Third Proportional to 53,728.88 and 117,086.63

Step by Step Solution

1. Step 1: Write the proportion equation
   53,728.88 : 117,086.63 = 117,086.63 : x
2. Step 2: Convert to fraction form
   53,728.88/117,086.63 = 117,086.63/x
3. Step 3: Cross multiply
   53,728.88x = 117,086.63 × 117,086.63
4. Step 4: Simplify right side
   53,728.88x = 13,709,277,753.89
5. Step 5: Solve for x
   x = 13,709,277,753.89/53,728.88
6. Step 6: Final answer
   x = 255,156.61